aRA-290 calculator

10 mg in 2 mL = 5 mg/mL; 10 units on a U-100 syringe holds 0.5 mg.

Sizes on sale: 10mg, 16mg, 50mg. Choose a vial, the water and the amount per draw; prices are the lowest current US offers.

search a compound or a supplier’s vial

amount in the vial

bacteriostatic water added

amount per draw

doses used in the cited label or trials:

syringe · picked to fit the draw

price, vial size and certificate correction

vial price (optional)

USD

Lowest current US offer for this size.

vial holds (optional)

Most 2–15 mg vials hold 3 mL.

measured content on the COA

From the lot certificate; it replaces the label amount.

or HPLC purity

Certificates on file for this compound:

American Peptides 10mg · lot ARA2901-0803 · 2026-08-17 · Bioviridian Inc.: 10.86 mg measured, 99.72% purityCOA
Amino Club 10mg · lot ARA0001 · 2026-08-03: 10.57 mg measured, 99.49% purityCOA

5 mg/mL

10 units holds 0.5 mg

concentration: 5 mg/mL
per unit: 50 mcg per unit
full draws per vial: —
cost per draw: —

the working

10 mg ÷ 2 mL = 5 mg/mL

If this is a prescription, the dose and volume on your pharmacy label take priority. Ask your pharmacist about any mismatch.

cheapest way to buy it

vendor	size	price	$/mg	checked	calculate with this vial, or view it
LA Peptidesfeatured partnerCOA 16.72 mg	16mg	$69.99	$4.37	2026-11-03	view, ARA-290 16mg at LA Peptides, opens in a new tab
Amino USA	10mg	$50.00	$5.00	2026-11-06	view, ARA-290 10mg at Amino USA, opens in a new tab
Cenexa Labs	10mg	$74.99	$7.50	2026-11-06	view, ARA-290 10mg at Cenexa Labs, opens in a new tab
American PeptidesCOA 10.86 mg	10mg	$82.00	$8.20	2026-11-06	view, ARA-290 10mg at American Peptides, opens in a new tab

In-stock US offers checked in the last 7 days, before shipping. The featured partner is a paid placement and is labelled; order here is by price per mg.

updated Nov 4, 2026 · exact arithmetic, checked against 21 worked cases · prices from offers checked in the last 7 days

human trials · cited sources

doses of ARA-290 used in research

Not approved; phase 2 trials in sarcoidosis-associated small-fibre neuropathy and type 2 diabetes used 1-8 mg subcutaneously once daily for 28 days, and an earlier pilot used 2 mg IV three times weekly for 4 weeks. These are the amounts specific labels and studies used, linked to each source. They are references, not recommendations; a prescription label takes priority.

Doses of ARA-290 used in labels and published studies
source	who	amount and schedule	route
Phase 2b (IOVS 2017, NCT02039687): 1, 4 or 8 mg SC daily phase 2 trial · 2017 · PMID 28475703	64 patients with sarcoidosis-associated small nerve fibre loss and neuropathic pain	4 mg once daily 28 days Arms were 1, 4 and 8 mg/day vs placebo (subcutaneous route per the NCT02039687 record); the 4 mg arm met the primary corneal nerve fibre area endpoint.	subcutaneous
Phase 2 (Mol Med 2015): 4 mg SC daily in type 2 diabetes phase 2 trial · 2015 · PMID 25387363	adults with type 2 diabetes and painful neuropathy (self-administered)	4 mg once daily 28 days, then 28 days off-treatment follow-up	subcutaneous
Randomized pilot (Mol Med 2012): 2 mg IV three times weekly human pilot study · 2012 · PMID 23168581	22 patients with sarcoidosis and small fibre neuropathy symptoms (12 active, 10 placebo)	2 mg three times weekly 4 weeks	intravenous

Sources checked Nov 4, 2026.

ARA-290 10mg in 2 mL

amount to syringe units

ARA-290 10 mg in 2 mL: amount to syringe units
amount	mL	U-100 units	U-40 units
100 mcg	0.02	2	0.8
250 mcg	0.05	5	2
500 mcg	0.1	10	4
1 mg	0.2	20	8
2 mg	0.4	40	16
2.5 mg	0.5	50	20
5 mg	1	100	40

One unit on a U-100 syringe is 0.01 mL; on a U-40 it is 0.025 mL.

every ARA-290 vial size on sale

reconstitution chart

Concentration and amount per 10 units for ARA-290 vial sizes and water volumes
vial	1 mL water	2 mL water	3 mL water	5 mL water
10 mg	10 mg/mL 10 units = 1 mg	5 mg/mL 10 units = 0.5 mg	3.333 mg/mL 10 units = 0.333 mg	2 mg/mL 10 units = 0.2 mg
16 mg	16 mg/mL 10 units = 1.6 mg	8 mg/mL 10 units = 0.8 mg	5.333 mg/mL 10 units = 0.533 mg	3.2 mg/mL 10 units = 0.32 mg
50 mg	50 mg/mL 10 units = 5 mg	25 mg/mL 10 units = 2.5 mg	16.667 mg/mL 10 units = 1.667 mg	10 mg/mL 10 units = 1 mg

10 units on a U-100 syringe is 0.1 mL. Every cell is exact arithmetic: amount ÷ water.

what the numbers mean · where they come from

terms and sources

Label amount or measured amount. The calculator starts from the amount printed on the vial. A lot certificate’s measured content (net peptide content, in mg) can replace it for the vial that was tested. HPLC purity is a share of peak area, not a mass, so a purity-only correction is shown as an estimate. See HPLC, certificate of analysis and how to read a peptide COA.
Concentration. Amount in the vial ÷ water added. Terms: reconstitution, bacteriostatic water, lyophilized.
Syringe units. A volume: 0.01 mL per unit on a U-100 syringe, 0.025 mL on U-40. Units say nothing about the compound until the concentration is known.
Cost per draw. Vial price × amount per draw ÷ vial amount, from the price per mg of a current offer. Offers come from the ARA-290 price comparison; certificates from the COA library.

Arithmetic only, on the numbers entered. Amounts from labels or trials are cited references, not recommendations; PeptideTech does not give personal use instructions and does not test products.

short answers

ARA-290 calculator questions

How much bacteriostatic water do I add to ARA-290 10mg?

Any volume the vial holds; 2 mL gives 5 mg/mL, so 10 units on a U-100 syringe holds 500 mcg. More water makes each draw read more units. The table below shows 1–5 mL for every ARA-290 vial size on sale.

What changes the calculated concentration?

Only two inputs: the amount of ARA-290 in the vial and the water added. 10mg in 2 mL is 5 mg/mL; twice the water halves it, and the amount per draw then reads twice the units. A lot certificate's measured content replaces the label: American Peptides's 10mg lot ARA2901-0803 measured 10.86 mg, which in 2 mL is 5.43 mg/mL. HPLC purity is a share of peak area, not a measured mass, so it is shown only as an estimate.

What doses of ARA-290 were used in research?

Not approved; phase 2 trials in sarcoidosis-associated small-fibre neuropathy and type 2 diabetes used 1-8 mg subcutaneously once daily for 28 days, and an earlier pilot used 2 mg IV three times weekly for 4 weeks. The table on this page lists 3 sources with amounts, schedules and links.

What does ARA-290 cost per mg?

The lowest current US price is $69.99 for 16mg at LA Peptides (about $4.37 per mg, checked 2026-11-03). The calculator turns any vial price into cost per draw.

How much ARA-290 is really in the vial?

Lot certificates on file report measured content: for example American Peptides's 10mg lot ARA2901-0803 measured 10.86 mg at 99.72% purity. Use the certificate correction to calculate from the measured amount.

more calculators

Volume and concentration arithmetic for laboratory reconstitution; not medical advice. API: /api/calc. Syringe scales: 0.3 mL U-100, 0.5 mL U-100, 1 mL U-100, 0.5 mL U-40, 1 mL U-40, 1 mL syringe, 3 mL syringe.