FAQ for Researchers
Selank FAQ: Reconstitution, Storage, Purity & Sourcing
3 min read•Published 2025-07-04•Quality Peptide USA Research
Selank is a synthetic heptapeptide analog of the immunomodulatory peptide tuftsin, with a glycyl-prolyl-glycyl-prolyl tail added for stability. It is widely used in research on neurochemistry, GABAergic signaling, and stress-response biology.. This guide covers faq for researchers for Selank — written for laboratory researchers sourcing US-synthesized peptides from Quality Peptide USA.
Is Selank research-grade?
Yes. Every batch of Selank sold by Quality Peptide USA is released to a ≥ 99% HPLC purity specification, with mass-spec identity confirmation and LAL endotoxin testing on every lot. The certificate of analysis is published on the product page.
How should Selank be reconstituted?
Reconstitute Selank with bacteriostatic water (0.9% benzyl alcohol). Inject the water down the inside wall of the vial — do not inject directly onto the lyophilized cake. Swirl gently until fully dissolved. Refrigerate at 2–8°C after reconstitution.
What is the reported half-life?
Short systemic life; CNS activity persists (research models) Half-life figures from in-vitro models are not directly transferable to ex-vivo or in-vivo systems.
Where is Selank synthesized?
Selank is synthesized in the United States and ships from a US facility. No overseas drop-shipping, no customs delays, full domestic cold chain.
What testing is performed on each batch?
RP-HPLC purity (≥ 99% spec), ESI / MALDI-TOF mass spectrometry, Karl Fischer water content, LAL endotoxin screen, and bioburden. All results are published on the per-batch certificate of analysis.
Can Selank be stacked with other peptides?
Many research protocols pair Selank with complementary peptides — the Glow stack for dermal models, the Wolverine stack for tissue repair, or GHRH/GHRP secretagogue blends for somatotropic studies. Review the published literature for your specific endpoint before designing a stacked protocol.
Research Use Only
All content is for laboratory and in-vitro research contexts only. Not intended to diagnose, treat, or prevent any condition. Not for human or veterinary consumption.
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