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#ACTH fragments

Semax, Selank and related ACTH-derived peptides.

Explainer

Why Semax Comes as a Nasal Spray

Semax is a Russian-registered nasal-spray peptide with no FDA or EU approval. Here is what the intranasal evidence actually supports.

26 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

Semax/Selank blend: the dosing math gap

Semax/Selank blend dosing math fails for one reason: the vial never states how much of each peptide it actually contains.

10 Sept 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

Selank and Semax: Should You Combine Them?

Selank has real generalized anxiety disorder trial data. Semax's focus reputation does not, and no study has combined the two.

20 Aug 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

Semax and alcohol cravings: the evidence

No human study shows that Semax reduces alcohol cravings, and one quoted animal result cannot answer a personal safety question.

7 Aug 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

ACTH-fragment nootropics: what we know

Semax, Org 2766 and ACTH(4-10) itself come from one hormone. Here is what the class evidence shows in humans, and where it runs out.

5 Aug 2026 · PeptideMethods Editorial Team · 5 min read
Explainer

Peptide blood tests before and after

What a before and after blood panel can show around retatrutide, hCG or Semax, what it cannot, and why interpretation belongs with a clinician.

3 Aug 2026 · PeptideMethods Editorial Team · 5 min read
Explainer

Semax and Selank together: the evidence

Semax and Selank are Russian nootropic peptides with small, mostly Russian-language trial records. No published study has given both to the same person.

3 Aug 2026 · PeptideMethods Editorial Team · 4 min read