Selank is a synthetic heptapeptide derived from the immunomodulatory fragment tuftsin, supplied as a lyophilised powder. It is supplied strictly for laboratory research use only.

What research area is Selank associated with?

Published preclinical laboratory work in this class concerns neuropeptide and GABAergic gene-expression chemistry in cell culture. We supply the material only; we make no representation as to any outcome, effect, or suitability for any purpose.

Is Selank approved for human use?

No. Selank is not a drug, supplement, food, cosmetic, or medical device, and has no approved human or veterinary indication. It is sold strictly for in-vitro laboratory research use by qualified professionals.

What purity is Selank supplied at, and how is it verified?

Each lot is assayed by HPLC and ships with its own lot-specific Certificate of Analysis, published in our COA registry. Purity figures are stated per lot - we do not publish a brand-wide specification in place of the actual certificate.

Selank

Synthetic tuftsin-analogue heptapeptide, supplied for laboratory research use only.

99.45% pure on this exact lot, verified by an independent lab, not by us
Tested in the USA. Ships within 1 business day, stored frozen, stable at room temperature until you mix it
Retest it at any lab. If it doesn't match our report, every dollar back

$59/ 10mg vial

$29.50 per vial with Buy 1, Get 1 Free

Buy 1, Get 1 Free· add 2, applied automatically

99.45% pure on this exact lot, verified by an independent lab, not by us
Tested in the USA. Ships within 1 business day, stored frozen, stable at room temperature until you mix it
Retest it at any lab. If it doesn't match our report, every dollar back

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All products currently listed on this site are for research purposes only.

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Proof, not promises. Every batch, tested by an outside lab.

Every batch of Selank is tested by an outside lab before it goes on sale — not by us. The one shipping now is lot GVQ9D3: 99.45% pure by HPLC, tested by ILS Laboratories on 02 Nov 2026. The signed report is right here. Purity is the number the lab measured, never “at least 99” — and a batch that misses its spec never ships.

Selank · 10mgLot GVQ9D3Live batch data

Purity99.45%

Passed

Tested by: ILS Laboratories
Tested on: 02 Nov 2026
Net content: 10.53 mg

Contaminant screens

Heavy metalsEndotoxinsMicrobialSolvents

See all lab reports

What happens before a vial reaches you

1Made in a controlled facilityDocumented, repeatable steps for every batch.
2Purity testedAn outside lab measures it and reports the exact number.
3Identity confirmedA second test proves it is what the label says.
4Report publishedSigned, filed by lot number, and public before the vial ships.

Live batch data

ILS Laboratories

Independent analytical lab

Certificate of Analysis

RESULT · PASS

Lot GVQ9D3Verified

Selank 10mg

HPLC purity

99.45%

Pass · Meets spec

Tested

02 Nov 2026

HPLC-UV + LC-MS

Analytical results

Identity (LC-MS)ConfirmedPASS

Net content10.53 mgPASS

HPLC Chromatogram

Main peak 99.45% · other 0.55%

Alex JohnsonPrincipal Chemist

Authentichain · Verified 6×

GABA systemanxiolytic

No sedationvs benzos

Gene expressionBDNF-linked

How Selank works

An anxiolytic research peptide studied for calming without the downsides of sedatives.

GABA systemanxiolytic

Studied in rat models for easing anxiety markers as effectively as benzodiazepines.

No sedationvs benzos

Investigated for that calming effect without the drowsiness or dependence of sedative drugs.

Gene expressionBDNF-linked

Researched for effects on gene expression, including BDNF-related signalling.

For research use only. Mechanisms described reflect published research literature.

Every batch we've tested

Anyone can show you one good report. Here is every batch of Selank we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.

3 batches on record · latest tested 02 Nov 2026

All lab reportsEvery Selank batch, on one page.The full testing history with every signed report. No login, no email wall.See all lab reports

What the studies found

Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.

Anxiety measuresPreclinical

In rats under unpredictable chronic mild stress, Selank given on its own was the most effective of the tested compounds at bringing raised anxiety measures back down.

matched benzos, no sedation reported

Behavioural Neurology, 2017 · chronic mild stress, rats

Raised anxietybaseline

Selankreduced

Elevated plus maze, rats under unpredictable chronic mild stress; relative depiction.

Boosting diazepamPreclinical

In the same rat chronic-stress model, Selank combined with diazepam reduced anxiety measures more than either compound given on its own.

combination vs diazepam alone

Diazepam alonebaseline effect

Diazepam + Selankgreater relief

Directional finding; magnitudes are relative, not measured values.

Behavioural Neurology, 2017 · chronic mild stress, rats

GABA signalingPreclinical

In rat frontal cortex, a single dose of Selank changed the expression of a panel of genes involved in neurotransmission, including GABA receptor subunits and transporters.

in vitro

Single dose of Selank

rat frontal cortex

Gene expression shifts

GABA receptor subunits and transporters

Proposed mechanism

allosteric action on the GABA system

Gene-expression study in rat frontal cortex; mechanism-level finding, not a clinical effect.

Frontiers in Pharmacology, 2016 · rat frontal cortex

Full research pages: Selank: What the Research Shows, and Who Did It, Semax vs Selank: What Separates Two Peptides From the Same Lab