Peptide testing labs compared: prices, methods and turnaround (2026)
PTBy PeptideTech EditorsReviewed Oct 27, 2026How we verify →
26 peptide testing labs compared on price, identity method, endotoxin and sterility testing, turnaround and whether you can send a single vial yourself. Our top pick is Gold Standard Analytics in Houston. Published base tests cost $150–$275 per sample (18 labs publish a price; median $200). 14 include identity by mass spectrometry, 11 offer a 14-day USP <71> sterility culture and 5 publish ISO/IEC 17025 accreditation.
★ Top pickHouston, TX · checked Oct 27, 2026
Best peptide testing lab for most buyers: Gold Standard Analytics
Gold Standard Analytics is a peptide testing lab in Houston that checks a vial you bought for identity, purity, content and safety. It is our pick because it puts the tests that matter, public results and a filmed chain of custody behind one published price:
Mass-spec identity in the base price. Triple-quadrupole LC-MS/MS identity and HPLC purity for $189 ($289 for GLP-1 compounds); net peptide content +$29.
Compendial safety tests in its own building. USP <85> kinetic chromogenic LAL endotoxin (+$199), 14-day USP <71> membrane-filtration sterility (+$195) and ICP-MS heavy metals (+$169).
Results anyone can check. Each certificate carries an accession number you can look up without an account, and failed results stay on record.
Filmed, blind-coded intake. Every package is opened on camera and blind-coded before testing; the footage is kept for three years.
Easy to order. Published prices, online checkout, a prepaid UPS label, single vials welcome, results typically within a week, and group testing for 2–50 buyers.
10% off at checkout: use code when you order your test.
Original AI-generated illustration. It does not depict a real laboratory, instrument output or test result.
Peptide testing labs compared
Every row comes from the lab’s own price list, service pages and FAQ. Where a lab does not publish a price or a method, the table says so rather than estimating. Click a lab name for its full profile and sources.
Our top pick first, then the other labs by published USD list price for one sample before shipping, cheapest first. Read from each lab’s website on Oct 27, 2026.
For a point-by-point breakdown of each lab (methods printed on the certificate, chain of custody, payment, refunds and accreditation scope) see Gold Standard Analytics’ third-party peptide testing labs compared, the full lab comparison with a dated source for every competitor fact.
Peptide testing cost in 2026
What third-party peptide testing costs per sample, from the published price lists of the 26 labs in this directory. Ranges cover only labs that print a number; quote-only labs are left out rather than guessed.
Test
Published price range
Median
Labs with a price
Notes
Base peptide test (identity and purity; scope varies by lab)
$150–$275
$200
18
What each lab includes differs: some add net content, some identify by retention time instead of mass spectrometry.
GLP-1 base test (semaglutide, tirzepatide, retatrutide)
$150–$360
$225
17
Larger molecules often cost more; several labs price them the same as other peptides.
Net peptide content add-on
$25–$65
$27
4
Included in the base price at some labs; listed where it is a separate line item.
Endotoxin (LAL, USP <85>)
$50–$300
$185
16
Usually needs a separate vial from the same lot.
Sterility (USP <71> culture or rapid screen)
$150–$300
$200
13
A 14-day USP <71> culture and a PCR or DNA screen are different tests; each profile says which.
Heavy metals (ICP-MS)
$50–$500
$150
12
Typically lead, arsenic, cadmium and mercury.
Bundled panel with safety tests (identity, purity, content, endotoxin, metals, sterility or a screen)
$595–$995
$700
5
Bundles differ: some include a 14-day USP <71> culture, others a rapid screen. Check the lab profile.
Scroll →
Scope, not just price. A $150 test that identifies by retention time and a $189 test with LC-MS/MS identity are not the same product. Compare what the base test covers.
Extra vials. Endotoxin, sterility and heavy metals usually each need their own sealed vial from the same lot.
Shipping. Most labs leave shipping to you; international labs add courier costs both ways. A few send a prepaid label.
Volume. Several labs discount from 5 or 10 samples, and group testing splits one fee across buyers.
For a test-by-test peptide purity testing cost breakdown, with Gold Standard Analytics’ full price list beside published rates from other labs, see goldstandardanalytics.com/peptide-testing-cost.
Cost per verified mg: price adjusted for tested purity and content
PeptideTech ranks vials by cost per labelled milligram. A lab report lets you go one step further and price only the milligrams the lab actually found. Cost per verified mg divides the vial price by the measured net peptide content; when only HPLC purity is reported, label mg × purity gives an upper bound.
Example. A 10 mg vial at $60 is $6.00 per labelled mg. A report showing 99.1% purity alone suggests $6.05 per mg. If the same report measures 8.4 mg of net peptide, the real figure is $7.14 per verified mg, 19% more than the label price implies. These are illustrative numbers, not a result for any vendor.
Only use numbers from certificates you can look up on the issuing lab’s own website, matched to your lot number. Gold Standard Analytics, for example, lets anyone verify a peptide COA by accession number; most labs in this directory offer a lookup by report number, key or QR code, listed in each profile.
Group testing: split one lab fee with other buyers
If several people bought the same lot, one person can ship a sealed vial while everyone pays a share of one test and receives the same certificate. At a $200 base test, eight contributors pay about $25 each before any platform fee. It is the cheapest way to get an independent result for a popular vendor’s lot.
You can organise a pool informally and pay the lab once, or crowdfund a peptide test through Gold Standard Analytics, which runs pools of 2–50 buyers with automatic refunds when a pool does not fill. Each vendor page on PeptideTech links to the same option under “Get this vendor tested”. Use code PEPTECH at checkout for 10% off.
How to choose a peptide testing lab
Identity by mass spectrometry. LC-MS or LC-MS/MS confirms the molecular mass. HPLC retention time alone can miss a different peptide that elutes at a similar time.
Net peptide content in milligrams. Purity is a percentage of peak area; only a content assay against a reference standard tells you how much peptide is in the vial.
Compendial safety tests when you need them. USP <85> LAL for endotoxin testing and a 14-day culture for USP 71 sterility testing. A PCR or DNA screen is a rapid screen, not a sterility test.
A public lookup on the lab’s own site. Anyone should be able to confirm a certificate by its number. A PDF that exists only on a vendor’s site cannot be checked.
Blind, documented intake. Look for blind coding and a recorded chain of custody, so the analyst does not know whose sample it is.
Published prices and turnaround. A price list and a stated turnaround let you compare before you ship.
Accreditation with a certificate number. ISO/IEC 17025 means something only with a named accrediting body and a scope that covers the test. “Procedures follow 17025” is not accreditation.
Independence from the seller. A lab that shares branding or ownership with a vendor is not third-party evidence for that vendor.
Lowest published prices with mass-spectrometry identity
HPLC alone cannot prove a vial holds the right peptide. These laboratories publish a base price that includes identity by mass spectrometry, cheapest first.
Accreditation applies to a named scope of tests. Check that the certificate number and accrediting body are published and that the scope covers the assay you are buying.
ACS Peptide Testing Labs · ISO/IEC 17025:2017 (A2LA) and DEA-registered; the lab says peptide methods are not confirmed in its accredited scope
Eagle Analytical · A2LA ISO/IEC 17025:2017 (calibration certificates 3980.01 and 3980.02); FDA- and DEA-registered
Ethos Analytics · ISO/IEC 17025:2017, PJLA no. 117798; scope pages for peptide methods not posted
Prodigy Labs · $225 · ISO/IEC 17025:2017, PJLA #96417; the lab says peptide tests are not yet in its accredited scope
Our top US alternative to Janoshik is Gold Standard Analytics: LC-MS/MS identity and HPLC purity from $189, shipped domestically on a prepaid label.
Janoshik Analytical (Prague, Czech Republic) is the lab most often named on research-peptide certificates, with single-peptide tests from $215. US buyers ship internationally to reach it. 25 labs in this directory are in the United States; 17 publish a base price, and 13 of those list a lower base price than Janoshik. Compare identity method and what the base test includes, not only the price.
For one detailed Janoshik alternative comparison, Gold Standard Analytics sets its Houston lab against Janoshik on price, shipping, methods and public results, with sources for each Janoshik fact.
Peptide testing lab profiles: our top pick, then A–Z
Each profile lists what the lab publishes about price, methods, turnaround, ordering and verification, with links to the pages read. “Worth knowing” notes a limit a buyer should check before sending a sample. “Side by side” links open a point-by-point comparison with Gold Standard Analytics, our top pick, published by Gold Standard with a dated source for each competitor fact.
Gold Standard Analytics
★ Top pickHouston, Texas, United States
Includes LC-MS/MS identity in its $189 base price, runs USP <85> endotoxin and 14-day USP <71> sterility in its Houston building, and films every package opening, with certificates publicly verifiable by accession number.
Discount
Use code PEPTECH at checkout for 10% off.
Base price
$189: LC-MS/MS identity and HPLC-UV purity
GLP-1 compounds
$289
Net content
+$29
Identity
LC-MS/MS (triple quadrupole)
Endotoxin
USP <85> kinetic chromogenic LAL, +$199
Sterility
USP <71> 14-day membrane filtration, +$195
Heavy metals
ICP-MS (USP <232>/<233>), +$169
Turnaround
Typically under 1 week; some compounds and tests 14–21 days
Ordering
Self-service online checkout with a prepaid UPS label
Individuals
Yes
Verification
Public lookup by accession number or QR code; failures stay on record
Accreditation
Not accredited; states procedures follow ISO/IEC 17025
Also
Group testing pools of 2–50 buyers; extra same-lot vials $75.
Worth knowing: Not ISO/IEC 17025 accredited; it states its procedures are modelled on the standard. Some specialty tests may be run by partner laboratories, which are named on the certificate.
10% off at checkout: use code when you order your test.
ACS is a single-site laboratory in Sun City Center, Florida, now part of Smithers. It states A2LA ISO/IEC 17025:2017 accreditation and DEA registration, and runs kinetic chromogenic LAL endotoxin, ICP-MS metals, GC-HS residual solvents and Karl Fischer moisture in-house.
Base price
Not published. Quote within published ranges: HPLC purity $150–$300, LC-MS/MS identity $200–$400
Net content
Not offered as a priced item
Identity
LC-MS/MS (Orbitrap), priced separately
Endotoxin
USP <85> kinetic chromogenic LAL, $175–$350 by quote
Sterility
Not offered
Heavy metals
ICP-MS (USP <233>), $200–$450 by quote
Turnaround
5–7 business days; complex work 7–10
Ordering
Quote by form, phone or email
Individuals
Not stated
Verification
No public lookup; reports sent as password-protected PDFs
Accreditation
ISO/IEC 17025:2017 (A2LA) and DEA-registered; the lab says peptide methods are not confirmed in its accredited scope
Worth knowing: Prices are published only as ranges and set by quote, and no sterility test or public COA lookup is listed. The lab also states that its peptide HPLC and LC-MS coverage under its accreditation scope “has not been confirmed”.
Sacramento, California, United States (registered address only; testing within its laboratory network)
Axiom publishes full panel, add-on, rush and volume pricing, and issues cryptographically signed certificates that anyone can check by report ID or QR code against Axiom’s own servers.
Base price
$195: LC-MS/MS identity, HPLC purity, net content and a rapid PCR microbial screen
Net content
Included
Identity
LC-MS/MS
Endotoxin
USP <85> kinetic chromogenic LAL, +$50
Sterility
USP <71> 14-day, $175 (the panel’s PCR screen is not USP <71>)
Heavy metals
ICP-MS (USP <232>/<233>), +$50
Turnaround
5 business days (8X panel: 8); 48-hour rush +$95
Ordering
Self-service online checkout with a free account
Individuals
Yes
Verification
Signed certificate lookup by report ID or QR code
Accreditation
Not accredited (stated)
Also
8X Comprehensive $595 adds endotoxin, metals, stability and a fentanyl screen; 10–30% off from 5 samples.
Worth knowing: Axiom states that testing is performed within its “laboratory network” and does not disclose which laboratory ran a given analysis, its Sacramento address is a registered address only, and it holds no ISO/IEC 17025 accreditation.
BioRegen prices UPLC-MS purity and identity at $165 per peptide with live online pricing and a stated 2–5 business-day turnaround, and every certificate can be checked online by number and key.
Base price
$165: UPLC-MS identity and purity
Net content
+$65 (identity, purity and content together $230)
Identity
UPLC-MS
Endotoxin
Kinetic chromogenic LAL, $195
Sterility
Not offered
Heavy metals
Not offered
Turnaround
2–5 business days
Ordering
Online request builder with live pricing; no account needed
Individuals
Yes
Verification
Lookup by COA number and security key on bioregen.com
bioregen.com ↗ · Checked Oct 27, 2026 from 8 pages on the lab’s website: 1, 2, 3, 4, 5, 6, 7, 8
Bioviridian
College Station, Texas, United States
Bioviridian publishes per-test prices on its own order form: $150 for identity, purity and net peptide content, $150 for LAL/rFC endotoxin, $100 for 77-element ICP-MS heavy metals and $200 for USP <71> sterility. Standard turnaround is 3–5 business days for fewer than 20 samples.
Base price
$150: LC-MS identity, purity and net content
Net content
Included in the $150 test (a services table also lists +$25)
Identity
LC-MS (MALDI-MS also cited)
Endotoxin
LAL or recombinant factor C, $150
Sterility
USP <71>, $200
Heavy metals
ICP-MS, 77 elements, $100
Turnaround
3–5 business days under 20 samples
Ordering
Online submission form with prices; no account needed
Worth knowing: ISO/IEC 17025 accreditation is described only as “in progress” with no accrediting body named. The site’s pricing is also not fully consistent: the services table lists a $25 content add-on, while the order form includes net peptide content in the $150 IPN test.
Offers analytical and microbiological testing from one lab, including structural methods (FTIR, Raman, circular dichroism, VCD) for peptide secondary structure and similarity alongside HPLC and LC-MS, and cites 25+ years of pharmaceutical testing expertise.
Base price
Not published. Quote only: HPLC purity and potency; identity by HPLC, LC-MS or FT-IR
Net content
Potency offered; price not published
Identity
HPLC, LC-MS or FT-IR (which applies is not stated)
Endotoxin
Offered; method and price not published
Sterility
Offered; method and price not published
Heavy metals
ICP-MS listed as coming soon
Turnaround
Not published
Ordering
Portal or form; price list sent on request
Individuals
Not stated
Verification
No public lookup published
Accreditation
Not stated
Worth knowing: No prices (price list requires submitting a form), turnaround figures, accreditation or public certificate verification are published, and heavy metals by ICP-MS is marked “Coming soon”.
Hudson, New Hampshire, United States (no street address published)
Publishes a full per-compound price list: most peptides $180–$240, GLP-1s $300–$380, variance vials $50. It also offers USP <71> sterility and kinetic-chromogenic LAL endotoxin at $240 each and accepts card, CashApp, Venmo, Bitcoin and Apple/Google Pay.
Base price
$180: Qualitative and quantitative HPLC ($180–$240 for most peptides)
GLP-1 compounds
$300
Net content
Included (quantitative HPLC)
Identity
HPLC; mass spectrometry not stated
Endotoxin
Kinetic chromogenic LAL, $240
Sterility
USP <71> membrane filtration, $240
Heavy metals
Not listed
Turnaround
Not published
Ordering
Email to order; shipping address sent after payment
Individuals
Yes
Verification
Verify portal by job number and access code
Accreditation
Not claimed
Also
Extra variance vials $50; card, CashApp, Venmo, Bitcoin and Apple/Google Pay accepted.
Worth knowing: Peptide identity is described as HPLC analysis with no mass-spectrometry confirmation stated, and no turnaround time is published.
chromate.org ↗ · Checked Oct 27, 2026 from 6 pages on the lab’s website: 1, 2, 3, 4, 5, 6
Eagle Analytical
Houston, Texas, United States
Eagle is an A2LA ISO/IEC 17025:2017-accredited, FDA- and DEA-registered pharmaceutical testing lab operating since 2003. It offers four sterility methods, including ScanRDI rapid sterility in 1–2 days, plus USP <85> and <86> endotoxin testing.
Base price
Not published. Quote only; no peptide identity and purity package listed
Net content
Assay and potency offered; price not published
Identity
HPLC/UPLC identification; high-resolution MS for biotherapeutics
Endotoxin
USP <85> LAL and USP <86> rCR; price not published
Sterility
USP <71> 14-day and ScanRDI 1–2 day rapid; price not published
Heavy metals
USP <233> by ICP-OES; price not published
Turnaround
Not published; rush halves turnaround at twice the price
Ordering
Client registration reviewed by Eagle, then the EagleTrax portal
Individuals
Not stated
Verification
No public lookup; reports in the client portal
Accreditation
A2LA ISO/IEC 17025:2017 (calibration certificates 3980.01 and 3980.02); FDA- and DEA-registered
Worth knowing: Eagle publishes no testing prices and no peptide identity/purity package, and testing requires an EagleTrax client registration that Eagle reviews. Its services are aimed at pharmacies, 503B facilities and manufacturers.
Ethos is ISO/IEC 17025:2017 accredited by PJLA (no. 117798), posts its accreditation certificate on the site, and now runs a public CoA verification portal that returns the original lab-issued PDF.
Base price
Not published. Quote only: purity, identity, impurity profile and peptide content
Net content
Offered; price by quote
Identity
Offered; method not published
Endotoxin
Not listed for peptides
Sterility
Not listed for peptides
Heavy metals
Listed for supplements, not for peptides
Turnaround
Not stated for peptides; form offers 3–5 day to next-day options
Ordering
Submission form, then a quote
Individuals
Not stated
Verification
Lookup by company name and Ethos sample ID at /verify-coa
Accreditation
ISO/IEC 17025:2017, PJLA no. 117798; scope pages for peptide methods not posted
Worth knowing: Ethos publishes no peptide prices, identity method, endotoxin/sterility options or peptide turnaround, so every peptide order goes through a quote, and the posted accreditation page does not show whether peptide methods fall within its accredited scope.
Fast published turnaround (1–3 business days on average), HPLC purity and LC-MS identity on every certificate, and a public COA database of more than 78,000 certificates.
Base price
$200: HPLC purity and LC-MS identity
Net content
+$25
Identity
LC-MS
Endotoxin
$175; method not stated
Sterility
PCR microbial DNA screen, $150 (not USP <71>)
Heavy metals
$100; method not stated
Turnaround
1–3 business days on average
Ordering
Online submission form plus card authorization
Individuals
Yes
Verification
Public COA lookup by search code or company name; posting is on by default
Accreditation
Not claimed; cites ISO 9001 and GLP principles
Also
Conformity vials $50; fentanyl screen $40; 5–10% off from 10 samples.
Worth knowing: Sterility is a PCR DNA screen rather than the USP <71> culture method, and failed results are not posted to the public database unless the client requests it.
Golden, Colorado, United States (address in its terms of service)
Horizon publishes a per-sample price table for lyophilized vials covering LC-MS/MS-based purity/ID/quantity, endotoxin, sterility and heavy metals, with multi-sample bundles and a $850 full QC panel.
Base price
$275: LC-MS/MS identity, purity and quantity (lyophilized vial)
Net content
Included (quantity)
Identity
LC-MS/MS
Endotoxin
LAL, $200
Sterility
Outsourced, $275, about 16 days; method not stated
Heavy metals
Elemental impurity screen, $175
Turnaround
5–7 days in the price table (other pages say 48–96 hours)
Ordering
By email; the lab issues a prepaid shipping label
Individuals
Yes
Verification
Lookup by report number at /verify-coa; certificates are public only if the customer opts in
Accreditation
Not claimed
Also
Blends $400–$650; bundles of 3, 5 and 10 samples at $750, $1,200 and $2,250.
Worth knowing: Every “Submit a Sample” and “Start your order” button opens an email rather than a checkout, sterility testing is outsourced (to SD PharmLabs per its Terms), and certificates are public only if the customer opts in.
Publishes a $600 Full QC Panel covering HPLC purity/quantitation, identity, USP <85> kinetic-chromogenic LAL endotoxin, ICP-MS heavy metals and a rapid sterility screen in one submission, with ~1-week turnaround.
Base price
$200: HPLC panel: retention-time identity, purity and quantitation
Net content
Included (quantitation)
Identity
HPLC retention time; LC-MS is a custom add-on
Endotoxin
USP <85> kinetic chromogenic LAL, in the $600 Full QC Panel
Sterility
Rapid DNA-microarray screen (not USP <71>), in the Full QC Panel
Heavy metals
ICP-MS, in the Full QC Panel
Turnaround
About 1 week; 3-day rush +$150
Ordering
Free portal account; print the packing slip and ship
Individuals
Not stated
Verification
QR code and access code at ils-lab.com/verify
Accreditation
States ISO/IEC 17025 accreditation; accrediting body and certificate number not published
Also
Full QC Panel $600 needs 3–4 vials; volume discounts from 15 samples.
Worth knowing: Standard identity is HPLC retention-time matching rather than mass spectrometry (LC-MS is a custom add-on), and sterility is a DNA-microarray rapid screen rather than USP <71>.
ils-lab.com ↗ · Checked Oct 27, 2026 from 5 pages on the lab’s website: 1, 2, 3, 4, 5
Janoshik Analytical
Prague, Czech Republic
The lab most often named on research-peptide certificates, with a broad per-compound menu and written terms that guarantee results within 21 working days.
Base price
$215: Identity, purity and amount for most single peptides ($215–$450 by compound, 2026 menu)
GLP-1 compounds
$360
Net content
Included (amount)
Identity
HPLC with mass-spectrometry identity, per its reports
Endotoxin
Add-on; current price not verified
Sterility
Add-on; current price not verified
Heavy metals
Add-on; current price not verified
Turnaround
Terms guarantee results within 21 working days of receipt
Ordering
Order form by email; pay first, then the shipping address is sent
Individuals
Yes
Verification
Verification key printed on each report, checked on janoshik.com
Accreditation
Not stated
Also
GLP-1 blind test $360; specialty peptides up to $450.
Worth knowing: janoshik.com blocks automated readers, so prices here are from its 2026 menu as reproduced by third parties; confirm them on janoshik.com. Samples from the US must clear Czech customs.
janoshik.com ↗ · Checked Oct 27, 2026 from the lab’s website: 1
KMD Analytical
Chatsworth, California, United States
KMD publishes flat per-vial pricing with net-peptide content in mg/vial included, a clear statement of what it does not test, and PDF-level SHA-256 certificate verification.
Base price
$150: HPLC identity (retention time + UV), purity and net content
Net content
Included (mg per vial)
Identity
HPLC retention time + UV spectral match; no mass spectrometry
Endotoxin
USP <85> kinetic chromogenic LAL, $150
Sterility
Not offered
Heavy metals
Not offered
Turnaround
5–7 business days; next-day rush +100%
Ordering
Self-service online checkout
Individuals
Yes
Verification
Lookup by certificate ID or QR code; PDF checked by SHA-256
Accreditation
Not claimed
Also
$125 per sample at 5–9 samples and $100 at 10+ on one order; blends +50% per extra active.
Worth knowing: Identity is by HPLC retention time and UV spectral match only (no mass spectrometry), sterility and heavy metals are not offered, and the endotoxin add-on is new: the homepage says the first vials run the week the reader is installed.
Kovera’s $200 base package includes HPLC purity, net content and LC-MS identity, and every add-on price (endotoxin, heavy metals, sterility, fentanyl, pH) is published in an online calculator.
Base price
$200: HPLC purity, net content and LC-MS identity
Net content
Included
Identity
LC-MS (ESI+)
Endotoxin
Kinetic chromogenic LAL, +$120
Sterility
14-day BacT/ALERT growth screen, +$200 (not described as USP <71>)
Heavy metals
ICP-MS, +$120
Turnaround
Not published
Ordering
Account required; prices in an online calculator
Individuals
Yes
Verification
COA ID lookup and QR code; certificates valid for 60 days
Worth knowing: No turnaround is published and the Terms call any estimate non-guaranteed. The Terms also make each COA valid for 60 days with verification revocable at Kovera’s discretion, and no accreditation is claimed.
koveralabs.com ↗ · Checked Oct 27, 2026 from 7 pages on the lab’s website: 1, 2, 3, 4, 5, 6, 7
Krause Analytical
Austin, Texas, United States
Broad in-house instrumentation (LC-MS/MS triple quad, GC-MS, ICP, FTIR, ion chromatography) with peptide add-on panels for USP <232>/<233> metals, USP <467> residual solvents, USP <71> sterility and USP <85> endotoxin, led by a principal scientist with 45+ years in chemistry.
Base price
Not published. Quote only: purity, potency and identity by HPLC-UV and HPLC-MS
Net content
Potency offered; price not published
Identity
HPLC-MS (LC-MS/MS in house)
Endotoxin
USP <85> LAL; price not published
Sterility
USP <71> 14-day; price not published
Heavy metals
USP <232>/<233>; price not published
Turnaround
Not published
Ordering
Contact form, then a quote
Individuals
Yes
Verification
Upload the COA PDF to a verification request form
Accreditation
Not stated
Worth knowing: No prices or turnaround times are published, peptide orders start with a contact-form enquiry, and several general service pages read “Page under development”.
krauselabs.com ↗ · Checked Oct 27, 2026 from 7 pages on the lab’s website: 1, 2, 3, 4, 5, 6, 7
MDx BioAnalytical Laboratory
College Station, Texas, United States
MDx confirms peptide identity by triple-quadrupole LC-MS/MS and pairs it with UPLC-PDA purity and net peptide content at one flat $225 rate ($350 with endotoxin), all shown on its online submission form.
Base price
$225: LC-MS/MS identity, UPLC-PDA purity and net content
Complete Peptide Panel with endotoxin $350; $213 per vial at 11–20 and $202 at 21+.
Worth knowing: MDx shows its PJLA ISO/IEC 17025:2017 certificate as expired pending re-accreditation after a March 2026 audit. Sterility and heavy-metals testing have no published method or price, and heavy metals is quote-only.
mdxbiolabs.com ↗ · Checked Oct 27, 2026 from 6 pages on the lab’s website: 1, 2, 3, 4, 5, 6
MZ Biolabs
Tucson, Arizona, United States
Accurate-mass identity on three Bruker Compact QTOF mass spectrometers, with optional MS2 fragmentation to confirm peptide sequences and custom method development.
Base price
Not published. Quote only: HPLC-UV purity with mass-spectrometry identity
mzbiolabs.com ↗ · Checked Oct 27, 2026 from 7 pages on the lab’s website: 1, 2, 3, 4, 5, 6, 7
Optiq Health Labs
Santa Ana, California, United States
Names its platforms (LC-MS, GC-MS, ICP-MS, ELISA, microbiology), reports total impurities and largest single impurity with mass-spec identification, and states in its FAQ that it does not change results at a customer’s request and is not affiliated with any peptide manufacturer or supplier.
Base price
Not published. Quote only: HPLC and LC-MS purity with mass-spec identity
Net content
Separate LC-MS service; price not published
Identity
LC-MS
Endotoxin
ELISA-based (no USP <85> citation); price not published
Sterility
7-day growth-based method (no USP <71> citation); price not published
Heavy metals
ICP-MS; price not published
Turnaround
5–7 days; 2–3 day rush
Ordering
Request access, then the SMPLTRAX portal; invoiced after receipt
Individuals
Not stated
Verification
QR code on each report; no public database
Accreditation
Not claimed
Worth knowing: Prices are not published and samples are not released before payment; the lab says individual consumers may submit but an order may need 2–5 vials, and endotoxin is run on an ELISA-based system rather than a cited USP <85> LAL method.
Chattanooga, Tennessee, United States (mailing address); testing by a partner lab in Michigan
Self-service checkout with published per-compound prices, discounted same-lot extra vials, and a built-in group-testing system for splitting one test’s cost.
Base price
$200: HPLC purity and mass in mg vs label ($200–$400 by compound)
GLP-1 compounds
$300
Net content
Included (mass vs label claim)
Identity
HPLC-UV; mass spectrometry not stated
Endotoxin
USP <85> LAL, from $300
Sterility
USP <71> methods, $300; 17–21 days
Heavy metals
ICP-MS, from $500
Turnaround
Not published for purity; sterility 17–21 days
Ordering
Self-service online checkout
Individuals
Yes
Verification
Lookup by sample number at verify.peptidetest.net
Accreditation
Not stated
Also
Extra same-lot vials $120–$135; built-in group testing.
Worth knowing: Peptide Test is an ordering service rather than a lab: its terms say partner laboratories run the tests, and its verification page links certificates generated by TrustPointe Analytics, a Michigan lab profiled here.
Prodigy publishes a full per-test peptide menu with prices, including in-house 14-day USP <71> sterility, ICP-MS heavy metals and USP <85> endotoxin, plus its acceptance criteria.
Base price
$225: HPLC purity, retention-time identity and content in mg
Net content
Included (mg per vial vs label)
Identity
HPLC retention time; LC-MS intact mass +$250
Endotoxin
USP <85> kinetic chromogenic LAL, $175
Sterility
USP <71> 14-day, in-house, $300
Heavy metals
ICP-MS, $275
Turnaround
5–7 business days; rush +25%
Ordering
Free self-serve portal with prices shown up front
Individuals
Yes
Verification
Verification code and QR code at prodigy-labs.com/verify
Accreditation
ISO/IEC 17025:2017, PJLA #96417; the lab says peptide tests are not yet in its accredited scope
Also
Injectable Safety Panel $595 (7–10 business days); Tier 3 with LC-MS/MS identity and sterility $995 (about 15 business days).
Worth knowing: Identity in the $225 base package is by HPLC retention time only (mass-spec confirmation is a $250 add-on), and the lab states its peptide tests are not yet in its ISO/IEC 17025 accredited scope.
Anyone can retrieve a SteriGenix-issued COA by batch, report or catalog number on its public verification page, and its sample agreement states chain-of-custody records are kept with the COA for at least three years.
Base price
Not published. Not published; intake closed
Net content
Not published
Identity
Not published
Endotoxin
Not published
Sterility
Not published
Heavy metals
Not published
Turnaround
Not published
Ordering
Intake closed during a transfer of ownership
Individuals
No
Verification
Public lookup by batch, report or catalog number
Accreditation
Not stated
Worth knowing: Intake is closed: the site says it is not accepting new orders or new client accounts while it undergoes a transfer of ownership, and only existing clients can sign in.
Publishes a fixed per-vial rate card with an order estimator, and prints per-component results, the chromatogram with USP tailing and plate count, and six-level calibration R² and RSD on each certificate.
Base price
$200: UHPLC identity (retention time + UV spectrum), purity and net content
GLP-1 compounds
$275
Net content
Included (mg per vial)
Identity
UHPLC-UV retention time + UV spectral match; no mass spectrometry
Endotoxin
LAL in replicate, $150
Sterility
Based on USP <71>: 48–72 h interim, 14-day final, $175
Heavy metals
USP <233> via a partner lab, $150
Turnaround
3–5 business days; sterility 14 days
Ordering
Application required, then the client portal
Individuals
Not stated
Verification
Public register by SHA-256 hash or QR code
Accreditation
Not claimed
Also
Further vials of the same compound $100; blends $375 for two analytes.
Worth knowing: Identity is by UHPLC-UV retention time and UV spectral match rather than mass spectrometry, and new clients must submit an application (company, storefront, monthly volume) and be approved before ordering in the portal.
synthesyx.com ↗ · Checked Oct 27, 2026 from 5 pages on the lab’s website: 1, 2, 3, 4, 5
TrustPointe Analytics
Dorr, Michigan, United States
TrustPointe sells per-compound HPLC assays through a self-service store with all HPLC raw data included, and lists compendial USP <71> sterility, USP <85> endotoxin and ICP-MS metals at published prices.
Base price
$200: HPLC identity, potency (mg) and purity; $200–$400 by compound
GLP-1 compounds
$300
Net content
Included (potency in mg)
Identity
HPLC with diode-array detection; mass spectrometry not stated
Endotoxin
USP <85> kinetic chromogenic LAL, $300
Sterility
USP <71>, 14–21 days, $300
Heavy metals
ICP-MS, $500
Turnaround
3–5 business days
Ordering
Self-service online store
Individuals
Yes
Verification
QR code or key at TrustPointeLIMS.com
Accreditation
Not claimed; methods validated to USP standards
Also
All HPLC raw data included; extra same-lot vials $100 each.
Worth knowing: Identity is by HPLC with diode-array detection (no mass spectrometry stated), no accreditation is claimed, and assay prices vary by compound from $200 to $400.
Published tiered panels with clear vial counts: Silver $250, Gold $550 adds endotoxin and USP <71> sterility, Elite $700 adds heavy metals and fentanyl. No minimum volume (“Submit one sample or one hundred”), plus client-controlled COA publication with QR verification.
Base price
$250: Silver panel: purity, quantity, spectral identity and solubility
Net content
Included (quantity)
Identity
“Spectral identity analysis”; technique not named
Endotoxin
LAL, +$210
Sterility
USP <71> 14-day, +$150
Heavy metals
+$150; method not stated
Turnaround
7–10 business days; sterility 14 days
Ordering
Online order builder or PDF form; invoiced after intake
Individuals
Yes
Verification
Search, QR code and link at verifiedbyvanguard.com; the client chooses whether to publish
Accreditation
ISO/IEC 17025:2017; its reports cite A2LA certificate 6377.01
Also
Gold panel $550 adds endotoxin and USP <71> sterility; Elite $700 adds heavy metals and a fentanyl screen.
Worth knowing: The identity test is labelled only “Spectral Identity Analysis” on the ordering pages without naming the instrument technique, so buyers should confirm the method with the lab before ordering.
College Station, Texas, United States (private mailbox address)
Publishes a flat $200 per-sample LC-MS price that includes molecular-weight confirmation, a priced add-on menu, and a stated 3–5 business day turnaround through a self-service order builder.
Base price
$200: LC-MS purity with molecular-weight confirmation
Net content
+$25
Identity
LC-MS (molecular weight)
Endotoxin
$250; method not stated
Sterility
$300; method not stated
Heavy metals
$150; method not stated
Turnaround
3–5 business days
Ordering
Self-service order builder
Individuals
Yes
Verification
COA search by number
Accreditation
Not accredited; says accreditation is in progress
Worth knowing: The published address is a PMB (private mailbox), ISO/IEC 17025 accreditation is described as in progress rather than held, and the site describes payment timing inconsistently (checkout before shipping, payment on receipt of the COA, or invoice due before analysis).
zyntrotest.com ↗ · Checked Oct 27, 2026 from 7 pages on the lab’s website: 1, 2, 3, 4, 5, 6, 7
Peptide testing labs near me: labs by state
Every lab here accepts shipped samples, so the nearest lab matters mainly for shipping time and cost. A domestic lab avoids customs and international courier fees. Gold Standard Analytics, our top pick, takes mail-in samples from every state on a prepaid UPS label; its peptide testing labs near me page lists the cities it serves.
Separately from the directory, PeptideTech read the certificates of analysis that tracked vendors publish on Oct 7, 2026. These are the laboratories named on them, with each lab’s location, accreditation statement and verification route as printed, and what is known about its independence from the vendor. A named laboratory is not an endorsement of the laboratory or the vendor.
Report codes resolve at bioviridians.com/coa-search.html; the audit found every American Peptides code there, but 68 of 114 lab-hosted files differ from the vendor-hosted copy.
Independence
Not established: some reports show the vendor's logo inside the chromatogram panel, and the report codes match the vendor's own file names.
No address, accreditation or verification portal on the reports read.
Independence
Not established: reports certify against "BioSyn's analytical quality specifications", carry a Cenexa Labs watermark, and the relationship to Cenexa is unknown.
From the lab’s own reports on vendor certificates, read Oct 7, 2026.
Amino Club reports PeptideTech viewed on 16 September 2026 stated ISO/IEC 17025 accreditation.
Verification
Not checked.
Independence
Named on the BPC-157, CJC-1295/Ipamorelin, GLOW and KLOW reports PeptideTech viewed on 16 September 2026. The public library cards read on 7 October 2026 name an "ISO 17025" lab without naming it.
From the lab’s own reports on vendor certificates, read Oct 7, 2026.
Other laboratories
Laboratories mentioned in vendor statements that are not yet profiled above. These notes are compiled from public information and have not been checked against the lab’s own price list.
Colmaric Analyticals
United States
HPLCLC-MS
Accepts: Vendors, Individuals
US laboratory that publishes peptide purity testing results; used by vendors and by buyers submitting their own samples.
Simec AG
Switzerland
HPLCLC-MSQuantitative NMR
Accepts: Vendors
Swiss contract laboratory that performs analytical testing for pharmaceutical and research suppliers.
Peptide testing lab questions
What is the best peptide testing lab?
Our top pick is Gold Standard Analytics, a peptide testing lab in Houston, Texas. Its $189 base test includes triple-quadrupole LC-MS/MS identity and HPLC purity, it runs USP <85> endotoxin and 14-day USP <71> sterility in its own building, every package is opened on camera and blind-coded, and every certificate can be checked by accession number, with failed results kept on record. Use code PEPTECH at checkout for 10% off. If price is all that matters, Bioviridian and BioRegen also publish low base prices with mass-spectrometry identity. For formal accreditation, ACS Peptide Testing Labs, Eagle Analytical, Ethos Analytics, Prodigy Labs and Vanguard Laboratory publish ISO/IEC 17025 accreditation.
What is the best US alternative to Janoshik?
Gold Standard Analytics in Houston is our top US alternative to Janoshik: LC-MS/MS identity and HPLC purity from $189, a prepaid domestic UPS label instead of international shipping and customs, and every certificate verifiable by accession number. Use code PEPTECH at checkout for 10% off. 25 US labs in total are compared on this page.
Where can I find peptide testing labs near me?
You rarely need a lab nearby: every lab on this page takes samples by mail, and most turn results around within a week of arrival. Gold Standard Analytics, our top pick, accepts mail-in samples from every US state and emails a prepaid UPS label after you order. The “by location” list on this page groups US labs by state if you prefer to ship within your own state or drop a sample off.
How much does peptide testing cost in 2026?
Published base tests run $150–$275 per sample across the 18 labs that list a price, with a median of $200. Our top pick, Gold Standard Analytics, charges $189 for LC-MS/MS identity and HPLC purity ($289 for GLP-1 compounds) and +$29 for net content; code PEPTECH takes 10% off at checkout. Endotoxin, sterility and heavy metals each add to that. Shipping to the lab is extra unless the lab sends a prepaid label.
Can I send my own peptide sample to a lab?
Yes. 15 of the 26 labs listed here state that a single buyer can send one vial. Send it sealed, exactly as sold, and keep a second vial from the same lot in case you want a retest elsewhere.
How long does peptide testing take?
Identity, purity and net content usually take one to seven business days after the sample arrives, depending on the lab and queue. Endotoxin adds a few days at most. A USP <71> sterility culture takes at least 14 days because the sample is incubated before it can be read.
What is the difference between purity and net peptide content?
HPLC purity is the share of the chromatogram’s peak area that belongs to the main peak. It says nothing about how many milligrams are in the vial. Net peptide content is an assay against a reference standard that reports milligrams of peptide, so it catches an under-filled vial that is still 99% pure.
Does HPLC prove a peptide is what the label says?
Not on its own. HPLC separates the sample and measures purity; a matching retention time is supporting evidence of identity. Mass spectrometry (LC-MS or LC-MS/MS) measures molecular mass and is the stronger identity test. Each profile on this page states which method the lab uses for identity.
Are any peptide testing labs ISO/IEC 17025 accredited?
ACS Peptide Testing Labs, Eagle Analytical, Ethos Analytics, Prodigy Labs and Vanguard Laboratory publish ISO/IEC 17025 accreditation. Most research-peptide labs are not accredited; several say their procedures follow the standard, which is not the same as holding an accredited scope.
How do I check that a peptide COA is real?
Look the certificate up on the issuing laboratory’s own website, using the report number, accession number, key or QR code printed on it. Compare the lot number with your vial. A PDF hosted only by the vendor, with no lookup on the lab’s site, cannot be independently confirmed.
What is group or crowdfunded peptide testing?
Several buyers of the same lot split the fee for one test. One person ships the vial, the lab tests it once, and every contributor receives the same certificate. It lowers the cost per person to a fraction of a single-buyer test.
Which tests matter most for a research peptide?
At minimum, identity by mass spectrometry, HPLC purity and net peptide content. Endotoxin, sterility and heavy metals are separate tests that need extra vials. PeptideTech does not give dosing or use advice; research peptides are not for human consumption.
Does PeptideTech test peptides?
No. PeptideTech does not run or commission laboratory tests. Laboratory profiles are compiled from each laboratory’s own website and dated; the separate list of laboratories named on tracked vendors’ certificates comes from reading those certificates.
How this directory is compiled: each profile is read from the laboratory’s own website on the date shown, with the pages linked. Prices are USD list prices before shipping and tax and can change; confirm with the lab before you ship. Tables are ordered by published price, then name. No laboratory pays for inclusion or position, and PeptideTech does not run or commission tests.
