Semax vs Selank vs Dihexa
Mechanism, receptor target, half-life, dose, and best-price vendor side by side.
Pick 2–3 peptides to compare
3 selected (maximum).
| Field | Semax | Selank | Dihexa |
|---|---|---|---|
| Receptor target | BDNF expression / melanocortin modulation | GABAergic / tuftsin analog | HGF/c-Met agonist |
| Mechanism class | nootropic | nootropic | nootropic |
| Half-life | ~25 minutes (intranasal) | ~30–50 minutes (intranasal) | ~10 hours (oral bioavailability) |
| Typical dose | 600–900 mcg daily intranasal | 500–900 mcg daily intranasal | 8–45 mg daily oral (research) |
| Sequence length | 7 residues | 7 residues | — |
| Best-price vendor | Swiss Chems → $73.95 (30mg) — $2.46/mg | Ion Peptide → $34.65 (10mg) — $3.46/mg | Swiss Chems → $69.99 (5mg) — $14.00/mg |
| See all vendors | /best/semax → | /best/selank → | /best/dihexa → |
Dig deeper
Pricing pulls live from our vendor database. Molecular data comes from published peptide literature. For full dosing protocols, side effects, and research citations, open each peptide's individual page.