Semax vs Selank: prices, identity and regulatory status (2026)
Semax and Selank are different research compounds, not substitutes for each other: Semax is a 7-amino-acid peptide (C37H51N9O10S); Selank is a 7-amino-acid peptide (C33H57N11O9). Neither product has a current in-stock price right now.
Semax vs Selank: current prices and packages
| Compared property | Semax | Selank |
|---|---|---|
| Category | Cognitive | Cognitive |
| Compared package | 10mg | 10mg |
| Lowest current price | No current in-stock price | No current in-stock price |
| Price per labelled mg | — | — |
| Package sizes | 5mg, 10mg, 25mg, 30mg, 50mg | 5mg, 10mg, 20mg, 30mg, 40mg |
| Vendors with current prices | 0 | 0 |
| Form at this package | No listing | No listing |
| Stock | Out of stock | Out of stock |
Prices exclude shipping. The price per labelled mg is always given per mg, so different package sizes compare directly; it is shown only for single-compound vials and powders with a labelled mass. Blends, capsules, liquids and IU-labelled packages are compared by package total.
Identity, regulatory status and registered research
| Compared property | Semax | Selank |
|---|---|---|
| Molecular formula | C37H51N9O10S | C33H57N11O9 |
| Molecular weight | 813.9 g/mol | 751.9 g/mol |
| Sequence | H-Met-Glu-His-Phe-Pro-Gly-Pro-OH (7 residues) | H-Thr-Lys-Pro-Arg-Pro-Gly-Pro-OH (7 residues) |
| CAS Registry Number | 80714-61-0 | 129954-34-3 |
| Registered clinical trials | None recorded | None recorded |
| Human intervention studies | 4 | 3 |
| US regulatory status | No reviewed Drugs@FDA record | No reviewed Drugs@FDA record |
Identity data: PubChem, FDA GSRS and EPA records; registry counts: ClinicalTrials.gov; status: Drugs@FDA. A matching name does not verify the contents of a supplier's lot.
Key human studies
Semax
- [The efficacy of semax in the tretament of patients at different stages of ischemic stroke]. Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2018
- [The study of chronic partial denervation and quality of life in patients with motor neuron disease treated with semax]. Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2007
- [Evaluation of therapeutic effect of new Russian drug semax in optic nerve disease]. Vestnik oftalmologii, 2000
Selank
- [Optimization of the treatment of anxiety disorders with selank]. Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2015
- [A comparison of the anxiolytic effect and tolerability of selank and phenazepam in the treatment of anxiety disorders]. Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2014
- [Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia]. Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2008
Studies are listed as records, newest first; they are not evidence that a research product is safe or effective.
Where to buy each compound
Semax
Semax is a catalogue entry whose compound-specific reference review has not yet been completed.
No vendor has a current in-stock price for this package.
Semax prices →Price history →Selank
Selank is a synthetic seven-amino-acid analogue of tuftsin with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro (TKPRPGP). The selected primary study examines gene expression in rat brain tissue.
No vendor has a current in-stock price for this package.
Selank prices →Price history →Related comparisons
Questions
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