What is the half-life of Semax?

Semax has an approximate elimination half-life of 30 min. Very short-acting — protocols dose 1–2× a day.

How long does Semax stay in your system?

Roughly 97% of a dose has cleared after five half-lives — about ~3 h for Semax. That is the window that matters for washouts, bloodwork and surgery.

Semax is typically administered by the intranasal route. Research range: 250–500 mcg intranasal in the morning.

What are the risks of Semax?

Same Russian-methodology caveat as Selank Pair effects with caffeine/sleep — easy to mis-attribute Limited long-term data

Semax

ACTH fragment for focus / cognition. Solo framework separating effects from caffeine and sleep.

Half-life: 30 min
Out of system: ~3 h
Route: Intranasal
Level: Intermediate

Very short-acting — protocols dose 1–2× a day. After the last dose, roughly 97% has cleared in ~3 h (five half-lives) — the window that matters for washouts, bloodwork and surgery.

What Semax is used for

ACTH fragment — reported focus + memory improvements
Used clinically in Russia for cognitive recovery contexts
Intranasal, no needles

How it's typically used

Research range: 250–500 mcg intranasal in the morning.

What to watch for

Same Russian-methodology caveat as Selank
Pair effects with caffeine/sleep — easy to mis-attribute
Limited long-term data

Common questions

What is the half-life of Semax?: Semax has an approximate elimination half-life of 30 min. Very short-acting — protocols dose 1–2× a day.
How long does Semax stay in your system?: Roughly 97% of a dose has cleared after five half-lives — about ~3 h for Semax. That is the window that matters for washouts, bloodwork and surgery.
How is Semax taken?: Semax is typically administered by the intranasal route. Research range: 250–500 mcg intranasal in the morning.
What are the risks of Semax?: Same Russian-methodology caveat as Selank Pair effects with caffeine/sleep — easy to mis-attribute Limited long-term data

About Other research compounds

What they are: Nootropics, metabolic agents, and research compounds that don't fit the other classes.
How they're run: Route and schedule vary widely — check the individual entry.
What to watch: This is the least-characterised corner of the atlas. Read the full guide, and treat anything without published human data as exactly that.

Full guide

Semax Alone: Tracking Focus and Cognitive Effects of the ACTH Fragment

A focused tracking guide for Semax used solo, with an emphasis on separating real cognitive signal from caffeine and sleep effects.

Other other research compounds

Peptid AI is an educational and self-tracking tool — not a medical service, and not a vendor. Nothing here is medical advice, a prescription, or an endorsement. Doses reflect what is commonly reported in research literature; they are not recommendations. Many compounds listed are experimental, not approved for human use, and/or controlled substances that are illegal to possess without a prescription in many countries. Always consult a qualified physician before starting, changing, or stopping any protocol.