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Retatrutide 40mg: research prices and suppliers

Comparing 40mg · Nasal spray. Different forms are not interchangeable.

Cheapest Retatrutide 40mg Nasal spray is $350.00 at US Peptide Labs, from 1 supplier. Check each offer’s source date.

Retatrutide, also identified as LY3437943, is an investigational agonist at GIP, GLP-1 and glucagon receptors. A peer-reviewed phase 2 trial and a later sponsor-described phase 3 program are different levels of source evidence. Read identity checks and sources ↓ · Research guides ↓

PTBy PeptideTech EditorsPrices last changed Sep 16, 2026Source timestamps on offersHow we verify →
See EU prices in €
Category
GLP-1
Selected package
40mg
Sizes
20mg, 40mg
Vendors
1
Form at this size
Nasal spray
Use
Research only
Cheapest Retatrutide 40mg
$350.00$8.75/mg
at US Peptide LabsIn stock
No code yet
Go to US Peptide LabsOpens the vendor’s own product page in a new tab.
Summary

Recorded prices for Retatrutide 40mg Nasal spray: $350.00. Tracked suppliers in this market: 1. Lowest recorded price: $350.00 at US Peptide Labs. Unit price: $8.75 per mg. Prices are shown before shipping. Each offer carries its own observation date; manually reviewed listings are not automatically refreshed.

Retatrutide 40mg Nasal spray prices by vendor

Each form has a separate price comparison: Vial offers · Oral spray offers. Different forms are not interchangeable.

VendorSizeStockCodePrice
US Peptide LabsOnly vendor in stock
40mg · Nasal sprayIn stock
$350.00Checked 2d ago
Go to vendor
Prices are before shipping. Codes embedded in affiliate links are shown and copied for convenience. A discount is included in the displayed price only when the offer explicitly records a verified discount; otherwise the vendor's listed price is shown. Stock was captured when the price was checked.

Retatrutide 40mg Vial: separate supplier comparison

These vial listings are ranked within their own form and package size.

VendorSizeStockCodePrice
US Peptide LabsOnly vendor in stock
40mg · VialIn stock
$300.00Checked 2d ago
Go to vendor
Compare the stated package and form. Prices exclude shipping; check each offer's source date and coupon status.

Retatrutide 40mg Oral spray: separate supplier comparison

These oral spray listings are ranked within their own form and package size.

VendorSizeStockCodePrice
US Peptide LabsOnly vendor in stock
40mg · Oral sprayIn stock
$350.00Checked 2d ago
Go to vendor
Compare the stated package and form. Prices exclude shipping; check each offer's source date and coupon status.

Where to buy Retatrutide in other markets

Prices below are collected in each vendor’s original currency. Compare matching sizes and forms within one market. Shipping, taxes and unconfirmed coupon discounts are excluded; check the vendor’s destination policy before ordering.

United Kingdom · GBP prices and supplier coverage →

VendorSize / formPriceStockSource checked
AllMyPeptides
View product ↗
10mg · Vial£42.99In stock2026-09-17
AllMyPeptides
View product ↗
20mg · Vial£72.99In stock2026-09-17
AllMyPeptides
View product ↗
30mg · Vial£92.99In stock2026-09-17
AllMyPeptides
View product ↗
40mg · Vial£119.45In stock2026-09-17
AllMyPeptides
View product ↗
60mg · Vial£169.99In stock2026-09-17

Canada · CAD prices and supplier coverage →

VendorSize / formPriceStockSource checked
Nuvion Peptides
View product ↗
10mg · VialCA$99.99In stock2026-09-18
Nuvion Peptides
View product ↗
30mg · VialCA$189.99In stock2026-09-18

Australia · AUD prices and supplier coverage →

VendorSize / formPriceStockSource checked
PhaseOne
View product ↗
5mg · VialA$76.99In stock2026-09-18
PhaseOne
View product ↗
10mg · VialA$119.99In stock2026-09-18
PhaseOne
View product ↗
15mg · VialA$167.99In stock2026-09-18
PhaseOne
View product ↗
20mg · VialA$207.99In stock2026-09-18
PhaseOne
View product ↗
30mg · VialA$247.99In stock2026-09-18
PhaseOne
View product ↗
60mg · VialA$329.99In stock2026-09-18
Browse vendors by market and shipping coverage →

Retatrutide for sale: price by size

SizeCheapestPer mgVendorsIn stock
20mg · Nasal spray$220.00$11.00/mg1140mg · Nasal spray$350.00$8.75/mg11

Where to buy Retatrutide

US Peptide Labs lists Retatrutide. Package sizes: 40mg, 20mg. Lowest recorded in-stock offer: $220.00 for 20mg Nasal spray. COA availability is vendor-reported. Shipping coverage: United States · free shipping on orders of $70 or more. Payment methods: Card.

Retatrutide suppliers compared

US Peptide Labs

Certificate availability is vendor-reported. Check the exact product and batch document; PeptideTech has not authenticated the sample.

Source, shipping and code status →

Research reference

Selected sources reviewed

Retatrutide, also identified as LY3437943, is an investigational agonist at GIP, GLP-1 and glucagon receptors. A peer-reviewed phase 2 trial and a later sponsor-described phase 3 program are different levels of source evidence.[1][2]

Identity checks

“Triple agonist” names the three receptor targets; it does not identify a separate “GLP-3” receptor or authenticate a product sold under that nickname.[1][2]

Published phase 2 evidence; phase 3 sponsor updates

The published randomized phase 2 trial enrolled 338 adults. Lilly’s current information describes an investigational phase 3 development program. Sponsor updates are identified as sponsor information, not substituted for a peer-reviewed paper or regulatory approval.[1][2]

Regulatory context

FDA states that retatrutide is not a component of an FDA-approved drug. Lilly describes it as investigational. This review does not infer regulatory status for every country.[3][2]

Supporting sources

  1. Retatrutide for obesity: a randomized phase 2 trialNew England Journal of Medicine · PubMed record · checked
  2. What to know about retatrutideEli Lilly and Company · trial sponsor · checked
  3. FDA concerns with unapproved GLP-1 drugs used for weight lossU.S. Food and Drug Administration · checked
Research searches — not supporting citations

Search results may include unrelated records. A search link does not establish that a matching study exists.

These selected sources describe named substances and studied formulations. They do not authenticate a supplier, a certificate of analysis or the contents of a particular lot, and do not provide instructions for use. “Healing” and other catalogue categories are navigation labels, not evidence of efficacy or treatment recommendations.

Understand the evidence

Retatrutide research and reading

Read the evidence, identity checks and limitations alongside the catalogue. Research findings do not verify a vendor’s product or establish suitability for personal use.

Retatrutide price history

Actual source observations from the last 14 days, shown separately by supplier, package and currency. Missing days are not filled in. The first refresh can preserve an earlier recorded price; it does not establish a daily price history.

No observation history has been recorded for this selection yet. Current offer dates are shown in the price table.

Save Retatrutide

Bookmark this product in your browser. To keep a particular supplier, size and form, use “Save offer” beside a price. Neither feature sends alerts or creates a subscription.

Retatrutide storage and handling (research context)

Follow the manufacturer’s current product- and batch-specific storage instructions and safety data sheet for Retatrutide. The catalogue does not verify temperature stability, sterility or a preparation method. Do not transfer handling instructions between different forms, concentrations or suppliers.

Retatrutide price: questions

Retatrutide 40mg costs from $350.00 across 1 vendor in the recorded listings. The cheapest in-stock offer is US Peptide Labs at $350.00; other sizes (10mg, 20mg, 30mg, 15mg, 50mg, 5mg, 60mg) are listed in the price-by-size table.
How we verify prices

Automated price sources are scheduled daily; other sources are checked manually. Check the offer's last successful source timestamp. A code is shown when it is attached to an offer or affiliate link. The displayed price includes a discount only when that code is cart-verified and the discounted price is explicitly recorded; otherwise it is the vendor's listed price. Prices exclude shipping. Stock status is captured at the same time. Rankings are by displayed price only. PeptideTech earns a commission when you buy through a link; it never changes the order.

Full method →

Compare Retatrutide with other research products

Compare package prices and forms; distinct compounds are not interchangeable.

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