Semax vs Selank
Semax is a synthetic heptapeptide analog of ACTH(4-10). Selank is a synthetic tuftsin-derived heptapeptide. They are different materials with different identities and different research literatures; the table below sets the two identities side by side, the sections after it summarise what each is studied for, and the certificate rows show how each has tested.
Semax and Selank side by side
| Field | Semax | Selank |
|---|---|---|
| Catalogue name | Semax | Selank |
| Type | Single peptide | Single peptide |
| Class | Synthetic heptapeptide analog of ACTH(4-10) | Synthetic tuftsin-derived heptapeptide |
| Components | Single compound | Single compound |
| Molecular formula | C37H51N9O10S | C33H57N11O9 |
| Molecular weight | 813.93 Da | 751.88 Da |
| Sequence length | 7 residues | 7 residues |
| CAS or identifier | Not assigned | 129954-34-3 |
| Form supplied | Lyophilized powder | Lyophilized powder |
| Sizes | 10mg | 10mg, 60mg |
| Price from | $60 | $60 |
| Documented HPLC results | 5 (99.08 to 99.99%) | 3 (99.61 to 99.75%) |
| Testing laboratories | Accurate Test Labs, Freedom Diagnostics | Accurate Test Labs, Freedom Diagnostics |
Identity fields come from the catalogue entry for each compound. Certificate counts are documented third-party HPLC results with a published certificate; image-only documents are excluded from the counts.
What the research literature describes
Semax
- BDNF Modulation Neurotrophic
- Serotonin & Dopamine Modulation Neurotransmitter
- Ischemic Models Neuroprotective
Selank
- GABA-A Receptor Modulation GABAergic
- BDNF & Enkephalin Upregulation Neurotrophin
- Tuftsin-Derived Immune Regulation Immunomodulatory
What each is studied for
Semax
- Memory & Learning Cognitive
- Cerebral Ischemia Models Neuroprotection
- BDNF & Neurotrophin Signalling Neurotrophic
- Immune Modulation Anti-Inflammatory
Selank
- Memory & Learning Cognitive Research
- Cytokine & Immune Modulation Immunology
- Transcriptomic Studies Gene Expression
Headings name the mechanisms and research applications described for each compound; the full text of each sits on the compound monograph linked below. They summarise findings reported in preclinical models. They describe what has been studied, not outcomes in people or animals outside the laboratory.
Catalogue, monographs and certificates
- Semax in the catalogueSizes, price and current certificate
- Semax monographMolecular data and mechanisms studied
- Semax lab resultsEvery third-party certificate
- Selank in the catalogueSizes, price and current certificate
- Selank monographMolecular data and mechanisms studied
- Selank lab resultsEvery third-party certificate
- All comparisonsEvery pair in the library
What is the difference between Semax and Selank?
Semax is a synthetic heptapeptide analog of ACTH(4-10); Selank is a synthetic tuftsin-derived heptapeptide. Semax has 7 residues and Selank has 7. Their molecular identities, the models they have been studied in and their certificate records are all listed on this page.
Are Semax and Selank sold together?
No. Eon Peptides lists them as separate catalogue items, each with its own sizes and its own certificates.
How has each tested?
Semax: 5 documented third-party HPLC results from 99.08% to 99.99%. Selank: 3 documented results from 99.61% to 99.75%. Every certificate is published and linked from each compound's lab results page.
Which one should a research project use?
That depends on the pathway and model under study, which is a scientific question this page does not answer. What it does is put the identities, the described mechanisms and the analytical records side by side so the choice can be made on documented facts. Both materials are for laboratory research use only.
For research use only. Not for human or veterinary use. Nothing on this page describes or recommends use in people or animals.