Selank

Selank is a laboratory-designed peptide originating from Russian research and structurally related to the human peptide tuftsin. It has been investigated for possible effects on anxiety, cognition, and responses to stress, but the supplied material does not establish clinical benefit.

Tuftsin is an endogenous peptide associated with regulation of immune activity. The guide identifies Selank as a derivative of tuftsin, although this relationship alone does not establish shared biological actions or therapeutic properties.

The guide discusses research into anxiety-related processes, cognitive function, and immune regulation. These are broad functional domains rather than defined molecular mechanisms, and the notes identify no specific receptors, signaling pathways, or directly demonstrated molecular interactions.

1. 01

   Molecular target

2. 02

   Cellular signal

3. 03

   Biological process

LEVEL 02 · Preclinical research

Laboratory or animal research exists. Findings do not transfer reliably to people.

Evidence levels reflect the state of documented research only. They are not rankings of popularity, quality or suitability, and a higher level never implies that a compound is an approved medicine.

The source guide presents Selank as a candidate for research involving anxiety symptoms, declining cognitive function, and stress-associated difficulties. It also attributes potential improvements in emotional regulation and immune activity to the peptide. The guide portrays its tolerability favorably and claims advantages over sedating anxiety medicines, but the supplied notes include no supporting study details.

Source: The Complete Guide to Peptides: Unlocking the Secrets to Health, Healing and Longevity — Hack Smith, Chapter 6, Introduction to Peptides (page references not verified)

Summarised in our own wording from the cited reference. The reference is a popular guide, not peer-reviewed literature; its statements are reported here as source claims rather than established facts.

Dosage, reconstitution and administration guidance is deliberately excluded from this platform.

The extent and quality of evidence supporting these proposed effects cannot be determined from the guide excerpts. Human clinical relevance, reproducibility, and longer-term outcomes remain unclear from the supplied information.

Safety data are limited in the supplied material; the guide mentions nasal discomfort, sleepiness, and headache without sufficient evidence to establish their frequency or severity. Its assertions that Selank lacks dependence, discontinuation effects, or adverse cognitive effects, and is comparatively safer, should not be treated as established conclusions. This summary is not medical advice.

Research-stage compound unless otherwise established by a competent authority. Regulatory classification differs between jurisdictions and can change over time; nothing here indicates marketing authorisation.

Primary reference for this entry:

The Complete Guide to Peptides: Unlocking the Secrets to Health, Healing and Longevity — Hack Smith, Chapter 6, Introduction to Peptides (page references not verified)

Suggested literature search terms taken from the source. They are search starting points, not citations to specific studies.

• “Selank peptide anxiolytic and cognitive enhancement”
• “Selank clinical trials”
• “Selank cognitive and emotional regulation”

Editorial status

source reviewed

Last updated

2026-09-14

Last reviewed

2026-09-13

Language

EN