Claims › Peptides

Does Semax improve focus and memory?

Studied in patients, not the pitch

One stroke study reported faster improvement in everyday-activity scores with Semax during rehabilitation. That doesn’t establish better focus or memory in healthy people.

10 of 16 in Every Peptide Explained in 10 Minutes (Human Studies Only)

What the human studies found

The studies (1)

Excerpt from Gusev et al. · Zh Nevrol Psikhiatr Im S S Korsakova · 2018
Gusev et al. · Zh Nevrol Psikhiatr Im S S Korsakova · 2018 · PubMed 29798983

Also cited

We checked the human research behind 16 peptides. The question wasn’t just “is there a study?” It was “does that study support the pitch?” For each one: who took part, what was measured, and what actually changed.

Backed by science? Bottles labeled TB-500, BPC-157 and retatrutide, with our mascot inspecting them.Watch all 16, explained: the film on YouTube · 9:42

An approval, a trial or a paper belongs to a particular substance and a particular use. None of it verifies the contents of a bottle sold online. This is an investigation of the claims, not a guide to taking them.

Sources checked October 2, 2026 · How we check · Corrections: hello@testedinhumans.com