Selank dose range
The amounts people commonly use, from the low end to the high end, with syringe units, schedule and half-life. The 8 published studies are one click away.
Animal studies only Brain
Common use ranges
Mostly from the official drug label or its main trials, plus clinic protocols. The label schedule is clear (2 drops each nostril, 3 times a day, 14 days), but mcg figures come from vendor and community guides that only roughly agree.
- Half-life
- Not measured in any published study
- How it is taken
- Nasal drops (the original route, a registered drug in Russia). Some people inject it under the skin.
- How long people use it
- The Russian label course is 14 days, and it may be repeated after 1 to 3 weeks. Community nasal use runs 14 to 30 days, then the same time off. Injected use is often 30 days on, 30 days off.
- Mixing used for the units
- 10 mg vial + 2 mL water. 1 unit on a U-100 insulin syringe = 50 mcg.
Pick your vial size and how much water you add. The units below change to match.
10 mg vial + 2 mL water: 1 unit = 50 mcg
| Tier | Each dose | Syringe units10 mg vial + 2 mL water | How often | Schedule | Vial lastsat this tier |
|---|---|---|---|---|---|
| Nasal, starting [1] | 250 mcg | Not a syringe dose | once a day | 250 mcg once a day for the first 2 to 3 days. | |
| Nasal, typical [2] | 300 mcg | Not a syringe dose | 3x a day | About 300 mcg per dose, 3 times a day, for 14 days. The Russian label says 2 drops in each nostril, 3 times a day, for 14 days. | |
| Nasal, higher [3] | 600 mcg | Not a syringe dose | 3x a day | Up to 600 mcg per dose, 2 to 3 times a day. One guide goes up to 900 mcg per dose. | |
| Injected, starting [4] | 250 mcg | 5 units 0.05 mL | once a day | 250 mcg once a day in the morning for the first 1 to 2 weeks. | about 6 weeks |
| Injected, typical [5] | 400 mcg | 8 units 0.08 mL | once a day | 400 to 500 mcg once a day in the morning. Another guide gives 200 to 400 mcg, 5 days a week. | about 4 weeks |
Good to know
- Selank is a registered drug in Russia as 0.15% nasal drops (1.5 mg per mL) in 3 mL bottles, for adults 18 and up.
- The label gives drops, not mcg. It does not state the drop size, so the mcg per dose on the label is not known for sure.
- One vendor guide says injecting is not the studied route for Selank.
- Research vials are sold as 5 mg and 10 mg powder.
Sources for these amounts
- Nasal, starting: Parahealth, Selank dosing guide
- Nasal, typical: Selank label text (medi.ru) · Selank label text (rlsnet.ru) · Parahealth, Selank dosing guide · Peptide Protocol Wiki, Selank dosing
- Nasal, higher: Peptide Protocol Wiki, Selank dosing · Parahealth, Selank dosing guide
- Injected, starting: Peptide Dosing Protocols, Semax and Selank stack
- Injected, typical: Peptide Dosing Protocols, Semax and Selank stack · Peptide Protocol Wiki, Selank dosing
How long people use it: Selank label text (medi.ru) · Peptide Protocol Wiki, Selank dosing
Take the Selank chart with you
Get a one-page printable chart for Selank, with the syringe units for each vial and water mix. We can also email you when a new Selank study is published.
This page shows what labels, clinics and users report, and what studies gave. It is not medical advice and not a recommendation for anyone. Many of these compounds are not approved for human use. Check your own medicines and lab work with a licensed clinician before using anything.
See the science: 8 published studies
No human dose data. No published human study of Selank states an amount given. Every figure on this page comes from animal studies.
Amounts given to animals in studies
Read this first. Human studies of Selank exist, but none of their abstracts state the amount given.
Every study used for this page
Proof grade: Animal studies only. No human dose data has been published. Amounts are quoted as each study reported them. Where the abstract does not state an amount, the row says so.
| Study | Who was studied | Amount given, as reported | Route | How often | How long | What the authors reported |
|---|---|---|---|---|---|---|
| PMID 184540962008 | Human GAD and neurasthenia (n=62; 30 selank vs 32 medazepam) | Not stated in the abstract | not in abstract | not in abstract | not in abstract | Anxiolytic effect similar to medazepam, plus antiasthenic |
| PMID 251762612014 | Human phobic-anxiety and somatoform (n=60) vs phenazepam | Not stated in the abstract | not in abstract | not in abstract | not in abstract | Anxiolytic effect, lasted a week after last dose |
| PMID 263563952015 | Human anxiety disorders (n=40 selank+phenazepam, 30 phenazepam alone) | Not stated in the abstract | not in abstract | not in abstract | not in abstract | Add-on lowered phenazepam side effects |
| PMID 326217222021 | Animal "males" (species not stated in abstract), social stress | 100 mcg/kg/day (LOWEST) | IP | daily | 20 days | Cytokine changes under stress |
| PMID 297876642016 | Mouse BALB/c and C57BL/6 | 300 mcg/kg/day | IP and intranasal compared | daily | 5 days | Compared routes on elevated plus maze and NMDA/GABA binding |
| PMID 282802892017 | Rat, white nonlinear, average 400 g (PMC full text) | 300 mcg/kg (about 5 microL per nostril of 12 mg/mL) | intranasal | once daily (per methods) | duration not verified | Selank boosted diazepam anxiolysis under chronic mild stress |
| PMID 316250622019 | Rat, outbred, 9 months old (n not in abstract) | 0.3 mg/kg a day | IP | daily | 7 days | Prevented ethanol-related memory deficit, BDNF effect |
| PMID 363223042022 | Rat, outbred, morphine-withdrawal model (n not in abstract) | 0.3 mg/kg (single "anxiolytic dose") | IP | single | single | Cut withdrawal index 39.6%; diazepam 2 mg/kg gave 49.3% |
How to read the study numbers
- One study, one group. Each figure is what one team chose for its own participants or animals.
- Route matters. An amount given into a vein (IV) is not the same as the same amount under the skin, in the nose or by mouth.
- Animals are not small people. An animal amount is shown as the study gave it. It is not a human amount.
- Short studies. Many studies ran days or weeks. They do not show what happens over longer use.
Common questions
Is there a human dose for Selank?
No published human study of Selank states an amount given. The figures on this page come from animal studies only.
Where do these Selank numbers come from?
From 8 published studies, each linked to its PubMed or ClinicalTrials.gov record. Every figure was checked against the study abstract or its open full text. Proof grade: Animal studies only.
How long does Selank stay in the body?
No published study has measured the half-life of Selank, so nobody knows exactly how long one dose stays in the blood.
Is this a recommendation for how much Selank to use?
No. This page shows the amounts reported by drug labels, clinics and users, next to what researchers gave in studies. It is not medical advice and not a recommendation for anyone. Talk to a licensed clinician before using any of it.