Research use only. Not for use in humans or animals. All products and information on this site are provided strictly for in-vitro laboratory research purposes and are supplied as research chemicals only.
What Is Selank? A Research Peptide Overview
Selank is a synthetic heptapeptide derived from the immunomodulatory peptide tuftsin, developed in neuropeptide research. It is studied in model systems focused on neuropeptide and behavioral endpoints. This overview covers what Selank is, what researchers study it for, and how to verify research-grade material.
Selank at a glance
| Property | Value |
| --- | --- |
| Name | Selank |
| Sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro (heptapeptide) |
| Parent molecule | Tuftsin analog |
| Molecular formula | C₃₃H₅₇N₁₁O₉ |
| Appearance | White lyophilized powder |
| Intended use | Laboratory research only |
Research background
Selank is a stabilised synthetic analog of the endogenous peptide tuftsin, developed in Russian neuropeptide research. Investigators added a proline-glycine-proline extension to improve its stability in model systems. It is used as a reference neuropeptide in studies of anxiolytic-model and neuroimmune endpoints.
What Selank is studied for
In laboratory research (cell-culture and non-clinical model systems), Selank is studied for its role in:
- Neuropeptide signaling — GABA/serotonin-system interactions in model systems.
- Behavioral-model research — anxiolytic-model endpoints in animal-model studies.
- Neuroimmune research — tuftsin-derived immunomodulatory activity in vitro.
All of this is laboratory research; Selank offered here is a research chemical only, supplied for in-vitro and non-clinical study.
How research-grade Selank is verified
Every batch that ships from a credible US supplier should arrive with a third-party Certificate of Analysis (COA) for that exact lot. Peptide Technologies publishes a COA on every batch and ties it to a QR code on the vial. A complete COA reports:
- Identity — mass spectrometry (ESI-MS) confirming the observed mass matches the theoretical mass of the target compound.
- Purity — reverse-phase HPLC, reported as percent peak area (typically at 220 nm). Research-grade material is ≥98–99% by area.
- Net content — gravimetric confirmation the vial holds the stated mass within tolerance.
- Endotoxin — LAL assay below research thresholds, where applicable.
If a vendor cannot show you a lot-specific COA, you cannot verify what is in the vial. Browse the public COA library →
How to source research-grade material
For laboratory research, sourcing quality comes down to a few checks:
- Lot-specific COA from an accredited, independent laboratory — not a generic marketing PDF.
- HPLC purity ≥98% by peak area, with the chromatogram shown.
- US synthesis and finishing, so the chain of custody is documented end to end.
- Cold-chain shipping for lyophilized material, so the product arrives stable.
Peptide Technologies meets each of these and shows the live competitor price on every product page. See how our pricing compares →
FAQ
What is Selank?
Selank is a synthetic tuftsin-derived heptapeptide studied in neuropeptide and behavioral-model research. It is supplied as a research chemical for laboratory use only.
Is Selank related to Semax?
Both are synthetic peptides developed in Russian neuropeptide research and are often studied side by side, but they are different molecules: Selank derives from tuftsin, while Semax derives from ACTH(4-10).
Is Selank legal to buy for research?
Selank is sold by Peptide Technologies for laboratory research use only (RUO). It is not an approved drug, dietary supplement, cosmetic, or food. Buyers must affirm research use and accept the Terms of Sale at checkout. Not for use in humans or animals.
Is Selank FDA approved?
No. Selank is not approved by the FDA and is not intended to diagnose, mitigate, or prevent any condition. It is supplied strictly as a research chemical for laboratory use only.
How is Selank verified?
Research-grade Selank is verified by RP-HPLC for purity, by mass spectrometry for identity, and — where applicable — by an LAL endotoxin assay, all reported on a lot-specific third-party Certificate of Analysis.
Where can I buy Selank for research?
You can buy Selank online directly from Peptide Technologies at peptidetech.is, with a third-party COA, cold-chain shipping, and lot traceability on every batch. View the Selank product page →