Free shipping on orders of $300 or more  ·  Every lot COA verified

Service-Disabled Veteran-Owned Small Business (SDVOSB) verified

Selank

Price range: $35.00 through $239.00

Made in the USA from imported peptide APIs (purified, filled and lyophilized domestically) and independently third-party tested. A Certificate of Analysis is published for every shipped lot, look yours up with our COA verification tool.

Selank Synthetic Tuftsin Analogue | Research Use Only

Selank is a synthetic heptapeptide analogue of the endogenous immunomodulatory tetrapeptide tuftsin (Thr-Lys-Pro-Arg), with the addition of a Pro-Gly-Pro C-terminal sequence to enhance metabolic stability and extend biological activity. Developed alongside Semax at the Institute of Molecular Genetics of the Russian Academy of Sciences, Selank has been extensively studied in preclinical research across immunological and neurological research disciplines.

In laboratory and animal model studies, Selank has been investigated for its interactions with GABAergic signaling pathways, enkephalin-degrading enzyme systems, and tuftsin receptor pharmacology. Research applications include anxiolytic mechanism studies, immune system modulation research, and investigations of cytokine expression and inflammatory pathway regulation. Selank has additionally been studied for its effects on BDNF expression, memory consolidation models, and stress response mechanisms. It is widely utilized as a research tool in studies examining the intersection of immune function and central nervous system signaling, as well as in comparative tuftsin analogue pharmacology research.

Research Specifications:

Available in 10MG single vials or 10 Packs

  • Sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro
  • Molecular Formula: C₃₃H₅₇N₁₁O₉
  • Molecular Weight: ~751.86 g/mol
  • CAS Number: 129954-34-3
  • Purity: ≥99% (HPLC verified)
  • Form: Lyophilized powder
  • Storage: -20°C, protected from light and moisture

For Research Use Only. This product is not intended for human or veterinary use, diagnosis, or treatment. Not evaluated by the FDA. For qualified research applications only.


Chemical identity & references
PubChem CID 11765600 · CAS 129954-34-3 · C33H57N11O9, 751.9 g/mol

Molecular weights shown are nominal identity values; salt or complex form and net peptide content are stated on each lot’s Certificate of Analysis. Verify this lot’s COA.

Specification

Compound
Selank, supplied as lyophilized powder
Mass per vial
10 mg
Pack options and SKUs
10 PACK: 10 vials, SKU SELA10P
Single Vial: 1 vial, SKU SELA10S
Purity
Standard: at least 99% chromatographic purity by HPLC on every lot we publish; see the lot register for the actual result on each lot. Guarantee: if an independent laboratory finds a vial below 98.0% within the claim window, we replace it (Returns and Testing Policy). The gap between the 99% standard and the 98.0% guarantee is deliberate: it allows for the normal variance between laboratories and methods, not for a lower product.
Lead time
Processed and shipped within 5 to 7 business days of purchase, then 2 to 5 business days carrier transit. See the Shipping and Delivery policy.
Lot documentation
The most recent published lot for this product is shown below; every published lot is on the lot register.
99.22% purity on our most recent lot of this product, lot UMP-9907743, tested 6/24/26 by Horizon Analytical.
Look up that lot and read the certificate yourself ›

Related Research Peptides

10% Off Your First Order

Finished in the USA from imported peptide APIs, third-party tested, veteran owned. Get your code, plus new product drops and restock alerts.