Back to Selank

Safety question

Is Selank safe?

Moderate risk — meaningful at higher doses or in vulnerable users. Selank scores 3/5. Adverse reactions are real and worth knowing — cardiovascular sensitivity, sleep disruption, and tolerance development show up at the upper end of the dose range. Cycling and individual response monitoring matter more than for foundational supplements.

Safety score

3 / 5

Evidence grade

C

Severe reactions on file

0

Pubmed cites

50

Key facts

typical dose
0.4–0.9 mg
dose frequency
1-2 doses
timing
AM/midday
with food
n/a
safety score
3/5
evidence grade
C
class
peptide
PubMed citations
50
legal status (US)
Research-chemical category
legal status (UK)
Research-chemical category
legal status (EU)
Research-chemical category
legal status (AU)
Prescription-only
primary mechanism
Heptapeptide structurally analogous to tuftsin, an endogenous tetrapeptide with immunomodulating activity.

Common side effects

Who should not take Selank

What "safe" means here

Our safety scoring reflects (a) published clinical and observational literature on healthy-adult use at standard supplement doses, (b) the spectrum of adverse-event reports in the medical and supplement-pharmacovigilance record, and (c) the regulatory status across major jurisdictions. It does notreflect long-term outcomes in populations that haven’t been studied, and it does not substitute for clinical judgement applied to your individual situation.

A 5/5 score does not mean “no risk” — it means risk has been quantified as low in healthy adults at usual doses. Idiosyncratic and allergic reactions are possible with virtually any compound, including those we rate highest.

Full mechanism, citations, and dose guidance for Selank are on the main reference page — see Selank. For the dose-by-dose breakdown, see Selank dosage. To check stack interactions, use the interaction checker.

This page is informational. It is not medical advice and does not establish a clinician-patient relationship. Individual risk varies with genetics, medications, pre-existing conditions, and dose. Always consult a qualified clinician before starting a new compound. See our full disclaimer and terms.