Compound Comparison
Selank and Semax are two research compounds that buyers often weigh up side by side. This page sets them next to each other on the facts that matter when sourcing for the bench in Europe – category, class, chemical formula, vial size, price and current stock – with no claim about what either does.
Selank is a synthetic heptapeptide (a tuftsin analogue), studied in laboratory research as an anxiolytic and nootropic compound. Semax is a synthetic peptide based on the ACTH(4-10) fragment, studied in laboratory research as a nootropic and neuroprotective compound. Both are supplied by PowerfullyPeptides strictly for laboratory research use only – not for human or veterinary use – specified to a ≥99% purity target, lot-tracked, and shipped tracked from inside the EU (Ireland).
Selank versus Semax at a glance. Scroll the table sideways on a phone.
| Attribute | Selank | Semax |
|---|---|---|
| Category | Neuropeptide Research | Neuropeptide Research |
| Peptide class / form | Synthetic heptapeptide (tuftsin analogue) — vial or nasal spray | Synthetic peptide (ACTH(4-10) analogue) — vial or nasal spray |
| Chemical formula | C33H57N11O9 | C37H51N9O10S |
| Vial size | 5 mg vial (nasal-spray format also available) | 5 mg vial (nasal-spray format also available) |
| Price | €30 | €30 |
| Stock status | In stock | In stock |
| Studied in laboratory models of | Studied in laboratory research as an anxiolytic and nootropic compound. | Studied in laboratory research as a nootropic and neuroprotective compound. |
| Shipping | Dispatched in 1–2 working days, tracked from inside the EU; on a lost parcel, replacement first. | Dispatched in 1–2 working days, tracked from inside the EU; on a lost parcel, replacement first. |
| Purity target | ≥99% purity target (specified) | ≥99% purity target (specified) |
| Documentation | Lot-tracked. Independent per-batch Certificate-of-Analysis testing is our published testing standard – see the COA page. | Lot-tracked. Independent per-batch Certificate-of-Analysis testing is our published testing standard – see the COA page. |
All prices, vial sizes, chemical formulae, categories and stock states are drawn from our live catalogue. Both compounds are supplied for laboratory research use only.
Canonical catalogue prices and honest live stock. Prefer to read first? Each product page has the full research profile and specifications.
Looking for something else? Browse all research peptides → · reconstitution calculator
Need the full research profile, specifications and references for a single compound? Selank has its own page: Selank product page. Semax has its own page: Semax product page.
Reconstituting a vial? Use the reconstitution calculator to get the exact bacteriostatic water to add and the volume to draw. To browse the full range, visit the shop, or read the background in our learn hub.
Research-use answers for buyers comparing Selank and Semax in the EU.
Selank is a synthetic heptapeptide (a tuftsin analogue); it is studied in laboratory research as an anxiolytic and nootropic compound. Semax is a synthetic peptide based on the ACTH(4-10) fragment; it is studied in laboratory research as a nootropic and neuroprotective compound. PowerfullyPeptides lists Selank under Neuropeptide Research and Semax under Neuropeptide Research, and supplies both strictly for laboratory research use only. This page compares the two on category, class, chemical formula, vial size, price and stock – it makes no claim that either is better or that either has any effect in humans or animals.
No. Both Selank and Semax are supplied exclusively for in-vitro and laboratory research. They are not for human or veterinary use, not for consumption, and nothing on this page is medical guidance or a claim of safety or efficacy.
Both are specified to a ≥99% purity target and are lot-tracked, so a batch can be traced through your records. Independent per-batch Certificate-of-Analysis testing is our published testing standard – see our COA page for how identity and purity are documented.
PowerfullyPeptides supplies both Selank and Semax to research buyers across Europe. Orders ship tracked from inside the EU (Ireland), so shipments to EU destinations cross no customs border, and they are dispatched in 1–2 working days. Both are sold strictly for laboratory research use only.
Yes. Both Selank and Semax are in stock. Add each to your cart from its product page or from the cards on this page, and they ship together in one tracked parcel from inside the EU.
Occasional, useful email: new-batch and restock notices, the free reconstitution calculator and guides, plus FIRST10 for 10% off your first order. No daily blasts.
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