Selank
Tuftsin-Analog Research Peptide - Tuftsin analog studied for anxiolytic signaling.
Selank is a synthetic analog of the immunomodulatory peptide tuftsin, studied for its reported anxiolytic and cognitive-stabilizing activity without sedative effects.
Selank derives from the immunopeptide tuftsin and is studied as an anxiolytic probe that appears to modulate neurotransmitter balance without sedation. Like Semax, it comes largely out of Russian research and is characterized chiefly in preclinical models.
Selank specifications
- CAS number
- 129954-34-3
- Molecular formula
- C33H57N11O9
- Molecular weight
- 751.88 g/mol
- Sequence
- Synthetic heptapeptide (tuftsin analog)
- Residues
- 7 residues (TKPRPGP)
- Presentation
- Lyophilized powder
- Documented purity
- 99.64% by HPLC
- Available sizes
- 10mg ($55)
- Archived COA lots
- 2
- Intended use
- Laboratory research use only. Not for human or veterinary use.
Studied pathways
- GABA / serotonin study - Investigated for modulation of neurotransmitter balance in anxiety-research models.
Reported mechanisms in the literature
- GABA / serotonin study - A synthetic analog of the immunomodulatory peptide tuftsin, studied for modulation of neurotransmitter balance in anxiety-research models without sedation. (Myasoedov et al.)
What Selank is researched for
- Stress response - Studied for anxiolytic endpoints without sedation in rodent models. (Myasoedov et al.)
- Neurotransmitter balance - Investigated for modulation of GABA/serotonin systems and BDNF-related signaling. (Zozulya et al.)
Selank certificates of analysis on file
Every lot below was tested by an independent laboratory and the full report is published as a PDF. Purity is shown exactly as the report states it. The same records are searchable in the COA library and can be checked on the lot verification page.
| Lot | Tested | Size | Laboratory | HPLC purity | Identity | Certificate |
|---|---|---|---|---|---|---|
| S91YKX | 27 Jul 2026 | 10mg | Accurate Test Labs | 99.61% | Confirmed (LC-MS/MS) | COA PDF |
| SLNK01122026-J | 15 Jan 2026 | 10mg | Freedom Diagnostics | 99.74% | Confirmed (LC-MS/MS) | COA PDF |
Published literature on Selank
The mechanisms above trace to peer-reviewed studies indexed on PubMed. These are independent third-party publications, not Aspect Peptides claims. Browse indexed research on PubMed.
Selank frequently asked questions
What is Selank?
A synthetic analog of the peptide tuftsin, studied for anxiolytic and cognitive-stabilizing activity without the sedative profile of classical anxiolytics.
Is Selank approved for human use?
It is registered for some uses in Russia but is not FDA-approved. It is supplied here for laboratory research only.
What is it researched for?
Neurotransmitter modulation and anxiolytic signaling in animal and cell models.
Documented to 99.64% purity by HPLC · third-party COA every lot · from $55 · For laboratory research use only.