selank calculator

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

Sizes on sale: 5mg, 10mg. 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

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:

LA Peptides 10mg · lot 1818 · 2026-10-06 · Bioviridian Inc.: 11.36 mg measured, 99.78% purityCOA
Amino Club 10mg · lot SLK0002 · 2026-07-30: 10.62 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 11.36 mg	10mg	$39.99	$4.00	2026-11-03	view, Selank 10mg at LA Peptides, opens in a new tab
Nova Peptide Supply	10mg	$44.99	$4.50	2026-11-06	view, Selank 10mg at Nova Peptide Supply, opens in a new tab
Cenexa Labs	10mg	$49.99	$5.00	2026-11-06	view, Selank 10mg at Cenexa Labs, opens in a new tab
Amino USA	10mg	$50.00	$5.00	2026-11-06	view, Selank 10mg at Amino USA, opens in a new tab
Amino USA	5mg	$30.00	$6.00	2026-11-06	view, Selank 5mg at Amino USA, opens in a new tab
American Peptides	10mg	$65.00	$6.50	2026-11-06	view, Selank 10mg at American Peptides, opens in a new tab
Cenexa Labs	5mg	$33.59	$6.72	2026-11-06	view, Selank 5mg at Cenexa Labs, 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

approved outside the US · cited sources

doses of Selank used in research

Registered in Russia (Peptogen) as Selank 0.15% nasal drops; the label gives 2 drops per nostril three times daily for 14 days. Indexed Russian trial abstracts state no dose. 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 Selank used in labels and published studies
source	who	amount and schedule	route
Russian label (Selank 0.15%): 2 drops per nostril three times daily label outside the US · 2025 · LP-No(010951)-(RG-RU)	Adults 18 and older with anxiety states, panic attacks, asthenia or sleep disorders, or for prevention and treatment of stress disorders (contraindicated under 18)	2 other three times daily 14 days; may be repeated after 1-3 weeks Amount is drops of 0.15% solution (1.5 mg/mL) into each nostril per dose. The label does not state mg per drop, so no mg figure is given.	intranasal

Sources checked Nov 4, 2026.

Selank 10mg in 2 mL

amount to syringe units

Selank 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 Selank vial size on sale

reconstitution chart

Concentration and amount per 10 units for Selank vial sizes and water volumes
vial	1 mL water	2 mL water	3 mL water	5 mL water
5 mg	5 mg/mL 10 units = 0.5 mg	2.5 mg/mL 10 units = 0.25 mg	1.667 mg/mL 10 units = 0.167 mg	1 mg/mL 10 units = 0.1 mg
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

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 Selank 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

Selank calculator questions

How much bacteriostatic water do I add to Selank 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 Selank vial size on sale.

What changes the calculated concentration?

Only two inputs: the amount of Selank 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: LA Peptides's 10mg lot 1818 measured 11.36 mg, which in 2 mL is 5.68 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 Selank were used in research?

Registered in Russia (Peptogen) as Selank 0.15% nasal drops; the label gives 2 drops per nostril three times daily for 14 days. Indexed Russian trial abstracts state no dose. The table on this page lists the source with amounts, schedules and links.

What does Selank cost per mg?

The lowest current US price is $39.99 for 10mg at LA Peptides (about $4.00 per mg, checked 2026-11-03). The calculator turns any vial price into cost per draw.

How much Selank is really in the vial?

Lot certificates on file report measured content: for example LA Peptides's 10mg lot 1818 measured 11.36 mg at 99.78% 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.