Peptide Knowledge Base · Cognition

Semax: what it is, what the evidence says, and its real status

A Russian nootropic peptide for focus and clarity. Interesting clinical history, thin Western evidence.

Can you actually get it?

Plain-English verdict: Education only.

Regulatory status: PCAC recommended · rulemaking pending.

How does Semax work?

A synthetic ACTH fragment proposed to influence BDNF and attention-related signaling.

What it does — and what it does not do

What it does: Researched for focus, attention, and stress-resilience support.

What it does not do: It is not a treatment for any cognitive or psychiatric condition, and we don't offer it today.

How honest is the evidence?

Evidence grade C — Mixed / early human evidence.

A grade measures how much human evidence exists, not whether a molecule is good, safe, or worth your interest. Read our grading methodology for what each grade means.

What we still don't know: Western trial evidence is minimal; long-term effects are uncharacterized.

WADA status: Not prohibited.

How it is taken

No established Western clinical dosing; research-stage.

Who should not take it

Not characterized in Western practice; not a substitute for care of any cognitive or mood condition.

Sources

Russian clinical literature on Semax (limited Western replication) · FDA PCAC docket, Jul 2026

Compounded medications are not FDA-approved. We keep two signals separate and never collapse them: whether you can get something, and what the rule currently says. See the live FDA Peptide Tracker for status.

Join the founding list →

Embed this card on your site · free, CC BY 4.0, no key.

Last reviewed Jun 16, 2026 · Peptós.LIFE · Not medical advice.