Side-by-side research comparison of Selank and Semax across our PubMed, ClinicalTrials.gov, and EuropePMC corpus. 3 head-to-head studies plus 59 on Selank and 54 on Semax.
| Selank | Semax | |
|---|---|---|
| Drug class | nootropic, anxiolytic | nootropic |
| Studies in corpus | 59 | 54 |
| Highest evidence tier | rct | review |
| Evidence tier mix | other · 12 rct · 1 preclinical animal · 35 in vitro · 6 | preclinical animal · 37 other · 6 review · 2 in vitro · 5 |
| Studies with explicit sample size | 8 | 4 |
| Head-to-head studies in corpus | 3 | |
Beyond the literature: here's what third-party Certificate-of-Analysis records (Janoshik, BCC, Auxlabs) say about real Selank and Semax batches we've tested. Aggregate, public data — cross-reference against the studies below.
We tested 1588 Selank batches across 636 manufacturers, 99.66% avg purity.
We tested 1731 Semax batches across 694 manufacturers, 99.44% avg purity.
We hold deeper lab coverage on Semax (1731 batches tested). Selank edges ahead on average measured purity (99.66% vs 99.44%) — a narrow gap; weigh it against failed-batch and underdose counts above.
Studies in our corpus that mention both Selank and Semax — the gold-standard direct comparison evidence.
This research highlights the potential of Selank as a therapeutic agent for managing non-motor symptoms, specifically anxiety, in Parkinson's disease, even in the presence of significant neurodegeneration. The fact that its anxiolytic effect persists despit…
This research provides crucial insights into the neurobiological mechanisms underlying the known anxiolytic and nootropic effects of Selank and Semax. Understanding how these peptides modulate specific brain networks could pave the way for more targeted the…
The presence of unapproved research peptides like Selank and Semax in seized products highlights a significant regulatory blind spot and potential public health risk. For peptide users and biohackers, this serves as a critical warning about the contents of …
Looking for vendor-level purity, endotoxin, and HPLC data on Selank or Semax? TitrateLab tracks Certificate-of-Analysis records from the major peptide labs (Janoshik, BCC, Auxlabs) alongside the research above. Cross-reference vendor batches against the studies on this page.