Dihexa vs Selank
Research Verdict
Selank is the stronger research reference for the stated comparison criteria. Selank: Russian RCT evidence (Semenova 2010, n=38) showing improved declarative memory and anxiolytic effects; approved in Russia.
Quick Answers
Which is better, Dihexa or Selank?
Selank is the stronger research reference for the stated comparison criteria. Selank: Russian RCT evidence (Semenova 2010, n=38) showing improved declarative memory and anxiolytic effects; approved in Russia.
What is the key difference between Dihexa and Selank?
Selank targets GABA-serotonin modulation for anxiolysis with modest cognitive enhancement; dihexa targets HGF/Met synaptogenesis for cognitive enhancement with no anxiolytic data - completely different mechanisms and research stages.
Evidence Comparison
Selank: Russian RCT evidence (Semenova 2010, n=38) showing improved declarative memory and anxiolytic effects; approved in Russia. Dihexa: single research group (McCoy/OHSU), zero human data, extraordinary in vitro potency claims that do not translate directly to in vivo. Selank has meaningfully stronger human evidence.
Evidence Context Favoring Dihexa
Cognitive enhancement research focused on synaptogenesis mechanisms, with acceptance of animal-only evidence and proto-oncogenic pathway concerns.
Evidence Context Favoring Selank
Anxiety-cognition research where some human evidence is required; selank's Russian clinical data, while limited, is the better-supported choice.
Side-by-Side Snapshot
| Evidence grade | Dihexa: Level D Selank: Level C |
|---|---|
| Research status | Dihexa: Preclinical Selank: Approved Outside US |
| Primary category | Dihexa: Cognitive & Nootropic Selank: Cognitive & Nootropic |
| Cited studies | Dihexa: 2 Selank: 2 |