Selank 5mg Vial | Heptapeptide

Selank supplied as 5 mg of lyophilised powder in a sealed vial. A synthetic heptapeptide, sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro, molecular weight 751.9 g/mol.

What is Selank?

A seven-residue synthetic peptide built from tuftsin, a naturally occurring immune tetrapeptide, with a three-residue extension added to slow enzymatic degradation. Tuftsin itself is a fragment of immunoglobulin G, so Selank is a stabilised derivative of a human immune peptide rather than a wholly novel sequence.

Regulatory status, stated plainly

Selank was developed at the Institute of Molecular Genetics in Moscow and is registered as a medicine in Russia. It holds no marketing authorisation in the UK, the European Union or the United States.

One further point buyers should have: Selank is centrally active. Whether a centrally active peptide falls within the scope of the Psychoactive Substances Act 2016 is a question we have not seen authoritatively settled either way, and it sits alongside the medicines position rather than replacing it. We state this because it is material, not because it resolves anything.

Selank and Semax

The two are frequently mentioned together and are unrelated sequences. Selank derives from tuftsin, an immune peptide. Semax derives from ACTH(4-10), a fragment of a pituitary hormone. Both are Russian-developed heptapeptides and both are centrally active, which is where the resemblance ends.

Price per milligram

This vial is £24.99 for 5 mg, which is £5.00 per milligram. Comparing suppliers on price per milligram rather than headline price is the only like-for-like comparison, because vial strengths are not standardised across this market.

Does it come with a certificate of analysis?

Supplied with a batch-specific certificate of analysis stating the batch reference, identity confirmation, chromatographic purity against specification, and the analytical method used. Purity by reverse-phase HPLC with mass spectrometric identity confirmation, and the certificate names the laboratory that performed the work.

How is it reconstituted?

Allow the sealed vial to reach room temperature before breaking the seal, which prevents condensation drawing moisture into the cake. Add bacteriostatic water slowly down the inside wall rather than directly onto the powder, then swirl gently until clear. Do not shake: agitation shears peptide chains. The volume added sets the working concentration, so calculate it before opening anything.

Cold chain and UK dispatch

Held at −20 °C from arrival to dispatch and shipped insulated with a cold pack, tracked. Return the vial to cold storage on arrival. Short transit excursions do not compromise a sealed lyophilised vial.

Supplied strictly for laboratory research use only. Not for human or veterinary use, and not for diagnostic or therapeutic application. Purchasers must be 18 or over and are responsible for compliance with the rules applying to them.