Compare · Nootropic peptide
Dihexa vs Selank
Both are nootropic peptide compounds. Here's how they line up on the evidence — graded the same way.
| Dihexa | Selank | |
|---|---|---|
| Evidence | 3/10 | 6/10 |
| Class | Nootropic peptide | Nootropic peptide |
| Summary | An angiotensin IV-derived oligopeptide studied in animals for synaptogenesis and cognition; it has never been tested in humans, and its foundational mechanism paper was retracted in 2025. | A Russian-developed anxiolytic peptide approved in Russia but unproven by Western standards; human trials are small, early, and single-country. |
| Full profile → | Full profile → |
Dihexa
Dihexa is a small peptide (a short chain of amino acids, the building blocks of proteins) made from a natural molecule called angiotensin IV. It got attention because of animal studies showing it could help neurons grow new connections and improve learning, along with a striking claim that it is…
Selank
Selank is a lab-made peptide (a short chain of amino acids, the building blocks of proteins) that was developed in Russia and is sold online as an anti-anxiety and "nootropic" (brain-boosting) compound. There is real human research behind it, but it's thin, almost all from Russia, and done on small…