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SELANK

Selank

Minimum order 2 vials or 2 pens — delivery in 2 weeks
An analog of tuftsin — an immune peptide, not a sedative. In Russia it has passed phase III as a selective anxiolytic; in the one study you can actually read, it acts on the amygdala.

Category VII — Mind & Sleep 🧮 Reconstitution calculator €31 – €121 from €24.80 to €96.80

Selank comes from tuftsin, a natural immune tetrapeptide, with a Pro-Gly-Pro tail attached for stability in the blood.

In Russia it's the active ingredient of an approved drug that, according to the literature, completed phase III clinical trials as a selective anxiolytic 1.

That phase III, though, isn't published in an accessible journal — “passed phase III” doesn't equal “we have the numbers”, and we say so plainly.

What you can read: in 52 healthy participants with placebo, fMRI showed a change in right amygdala connectivity within 20 minutes 2. In animals, an antidepressant component in two models 1, and improved learning in animals with low baseline ability 3.

Same tail as Semax, same research team — but the analysis found distinct effects for each 2. It's not the same molecule under another name.

For research use, in plain or N-acetylated, amidated form. Refrigerate, keep dark, roll never shake.

Sources — 3 published studies
  1. Sarkisova KYu, Kozlovskii II, Kozlovskaya MM. Effects of heptapeptide selank on genetically-based and situation-provoked symptoms of depression in behavior in WAG/Rij and Wistar rats, and in BALB/c mice. Zh Vyssh Nerv Deiat Im I P Pavlova. 2008;58(2):226-237. [PMID 18661785] PMID:18661785
  2. Panikratova YaR, Lebedeva IS, Sokolov OYu, et al. Functional Connectomic Approach to Studying Selank and Semax Effects. Dokl Biol Sci. 2020;490(1):9-11. doi:10.1134/S001249662001007X
  3. Kozlovskii II, Danchev ND. The optimizing action of the synthetic peptide Selank on a conditioned active avoidance reflex in rats. Neurosci Behav Physiol. 2003;33(7):639-643. doi:10.1023/a:1024444321191

Selank isn't some random relaxant — it's tuftsin with a Pro-Gly-Pro tail, designed to last in the blood long enough to do its job.

In Russia, it's the active ingredient of a drug that reached phase III as a selective anxiolytic 1. No published numbers there — we're saying it straight, not hyping it up.

What does have numbers: 52 people, placebo, fMRI. It changed right amygdala connectivity within 20 minutes — the structure that handles anxiety 2.

In animals: an antidepressant component in two depression models 1, and improved learning in animals with low baseline ability, with an effect size comparable to piracetam 3.

Same tail as Semax, same team, same study — but distinct effects for each 2. You're not buying the same thing twice.

For research use. Refrigerate, keep dark after reconstitution, roll never shake.

Sources — 3 published studies
  1. Sarkisova KYu, Kozlovskii II, Kozlovskaya MM. Effects of heptapeptide selank on genetically-based and situation-provoked symptoms of depression in behavior in WAG/Rij and Wistar rats, and in BALB/c mice. Zh Vyssh Nerv Deiat Im I P Pavlova. 2008;58(2):226-237. [PMID 18661785] PMID:18661785
  2. Panikratova YaR, Lebedeva IS, Sokolov OYu, et al. Functional Connectomic Approach to Studying Selank and Semax Effects. Dokl Biol Sci. 2020;490(1):9-11. doi:10.1134/S001249662001007X
  3. Kozlovskii II, Danchev ND. The optimizing action of the synthetic peptide Selank on a conditioned active avoidance reflex in rats. Neurosci Behav Physiol. 2003;33(7):639-643. doi:10.1023/a:1024444321191

It didn't come from a sedative. It came from an immune peptide.

Tuftsin (Thr-Lys-Pro-Arg) is a natural tetrapeptide cleaved from immunoglobulin that activates macrophages. Selank is tuftsin with the same Pro-Gly-Pro tail that Semax carries — Thr-Lys-Pro-Arg-Pro-Gly-Pro. The tail is there so the molecule holds up in the blood.

Where it stands clinically — and this is unusual for a peptide. The literature itself says so explicitly: Selank is the active ingredient of a drug that completed phase III clinical trials as a selective anxiolytic 1. In Russia it's marketed as an approved drug.

And now the “but”, because there is one. That phase III isn't published in a journal you can open and read. The phrase “passed phase III” isn't the same thing as “here are the numbers”. We write this because elsewhere you'll only see it as a headline.

What you can read. In 52 healthy participants with placebo and resting-state fMRI, Selank altered the connectivity of the right amygdala — precisely the structure that regulates anxiety — with the right temporal cortex, within 20 minutes of the injection 2. In animals, it showed an antidepressant component in two different depression models 1, and improved learning in rats that started out with low learning ability — with an effect size comparable to piracetam 3.

Why it's not the same as Semax. Same tail, same research team, same fMRI study — and yet the analysis found both shared and specific effects for each 2. It's not one molecule with two names: one was developed for focus, the other for anxiety.

Sources — 3 published studies
  1. Sarkisova KYu, Kozlovskii II, Kozlovskaya MM. Effects of heptapeptide selank on genetically-based and situation-provoked symptoms of depression in behavior in WAG/Rij and Wistar rats, and in BALB/c mice. Zh Vyssh Nerv Deiat Im I P Pavlova. 2008;58(2):226-237. [PMID 18661785] PMID:18661785
  2. Panikratova YaR, Lebedeva IS, Sokolov OYu, et al. Functional Connectomic Approach to Studying Selank and Semax Effects. Dokl Biol Sci. 2020;490(1):9-11. doi:10.1134/S001249662001007X
  3. Kozlovskii II, Danchev ND. The optimizing action of the synthetic peptide Selank on a conditioned active avoidance reflex in rats. Neurosci Behav Physiol. 2003;33(7):639-643. doi:10.1023/a:1024444321191

1 and 3 are in animals. The only human study you can read in full is 2, and it measures brain signal — not an anxiety scale.

Frequently asked questions

Which packs is Selank available in?

Vial: 5 mg vial, 10 mg vial, 30 mg vial · Pens: 1 × 5 mg pen, 1 × 10 mg pen, 1 × 30 mg pen.

Is Selank in stock?

We don't keep it in stock — it's ordered in: minimum 2 items (vials or pens) from the special-order products, with free shipping, and it arrives in about 2 weeks.

How much is shipping?

€3 shipping + €3 cash-on-delivery fee. For orders of 2 vials or pens or more, shipping and the cash-on-delivery fee are free. Delivery time depends on the courier.

How do I pay?

Cash on delivery, paid to the courier when it arrives. For an electronic money transfer (PayPal, Revolut, Wise, crypto), email us for the details: ellinikapeptidia@gmail.com

Can I return it?

Yes: you have a 14-day right of withdrawal from delivery, as long as the seal is intact. Return costs are yours, unless the product was faulty or wrong. Terms of Use

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