What is Selank?

From the PeptideWhiz library entry. "As described" sections summarize claims made in the sources; they are not PeptideWhiz endorsements.

What it is

Selank is described as a synthetic peptide studied mainly for anxiety. Small human studies have reported improvements but are described as not settling whether it is a dependable long-term treatment. It is described as not an FDA-approved anxiety medicine.

Structure (as described)

• A seven-amino-acid peptide (heptapeptide) developed from tuftsin, a naturally occurring immune-system peptide, by adding three amino acids. Its sequence is Thr-Lys-Pro-Arg-Pro-Gly-Pro. That origin explains the interest in nervous-system and immune effects.
• It is described as anxiolytic (intended to reduce anxiety) or nootropic (proposed to improve cognition); those labels describe the questions investigated, not the strength of the evidence.

Evidence (as described)

• Published clinical reports offer preliminary support, mostly from relatively small Russian-language studies; English abstracts describe comparisons with benzodiazepines rather than a large, independently replicated placebo-controlled program.