Semax half-life
How long Semax stays active in the body, what that means for your dosing schedule, and where to buy.
Semax half-life
Short (hours) — but effects compound over 2–4 weeks
Typical dose
250–1000 mcg intranasal, 1–2x per day
What half-life means for Semax
Half-life is the time it takes for half the compound to be cleared from the body. Shorter half-lives (< 4h) usually require daily or multiple-daily dosing to maintain levels; longer half-lives (days) support once-weekly protocols.
For Semax, the characterised half-life is Short (hours) — but effects compound over 2–4 weeks. This directly informs the typical protocol of 250–1000 mcg intranasal, 1–2x per day.
Full mechanism, benefits, and dosing guidance on the main Semax page.