Semax + Selank
Also known as: Semax/Selank
Pre-mixed blend of Semax (an ACTH(4-10) analog) and Selank (a heptapeptide tuftsin analog), both developed at the Russian Institute of Molecular Genetics. The individual compounds are registered as prescription drugs in Russia (intranasal); neither is FDA- or EMA-approved. The blend itself is NOT clinically validated — no controlled trial has tested Semax and Selank co-administered.
Who's worth your money for Semax + Selank
Every current seller, ranked by independent evidence — Merit Score, latest COA purity, and live $/mg (size-normalized). Prices refresh daily. Rankings are never paid.
Top Merit pick
Highest Merit Score (95) of 1 scored sellers
$90.00 · 20mg
Average price
$4.62/mg
Sellers
20
45-day trend
+0.1%
15 of 20 sellers have a current price· 13 stale hidden· 1 unverified hidden
- 🇺🇸 Prime Peptides95
via Disclosed Labs · 23h ago
$4.50/mg -2.7% vs avg$90.00
20mg
no purity
Prices observed from public storefronts (last 24h), normalized to $/mg. "Evidence" is Merit's 0–100 Merit Score, derived only from observable verification evidence (methodology on /about); "Purity" is the latest independent COA. Some buy links are affiliate links — Merit may earn a commission at no extra cost to you, and where a vendor offers one, the code shown gets you a discount at their checkout. Affiliate status never affects price data, ranking, or the Merit Score (full policy on /disclosure). Research use only.
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About Semax + Selank
CAS
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Molecular formula
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Typical dose range
Semax 200–600 mcg + Selank 250–500 mcg intranasally per session, typically 1–2x/day; often combined in equal-ratio nasal spray formulations
Half-life
Semax plasma ~2–5 min; Selank plasma ~2–10 min; CNS/functional effects of both extend several hours beyond clearance
COAs for Semax + Selank
5 third-party tests across 5 vendors. Each card links to the full report.
For
N-Acetyl Semax/N-Acetyl Selank
by OROS Research· batch OR-LPNASMSL15-326-B2
For
Semax + Selank
by Glacier Aminos· batch SXSK10GA-01
For
Semax + Selank
by Mile High Compounds· batch SSB-020-MH-01
For
Selank + Semax
by Peptide Plugs· batch 125-02-GGB
Purity not on file
For
N-Acetyl Semax/Selank Blend
by EZ Peptides· batch EZP-SEMXSEL1003052026-01
4 citations indexed for Semax + Selank
review · 2026
Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives
Therapeutic peptides are short chains of amino acids used to treat metabolic and endocrine conditions such as obesity and type 2 diabetes.
Study · 2022
Abstracts from the 54<sup>th</sup> European Society of Human Genetics (ESHG) Conference: e-Posters
animal · 2017
Studying the Toxic Effects of Some Biologically Active Peptides on the Model of Mouse Embryonic Stem Cells
We studied the effects of peptide drugs (HLDF-6, PGP, RPGP, and PGLP) and peptide pharmaceutical products (Semax, Selank, and thyroliberin) on proliferation and survival of mouse embryonic stem cells and their derivatives. Differentiation of mouse embryonic stem cells into neuronal precursors was evaluated.
animal · 2005
Natural and hybrid ("chimeric") stable regulatory glyproline peptides
The present concept of relative instability of regulatory peptides (RPs) in organisms must be amended. The recently characterized family of glyprolines and some other prolyl-glycyl-proline (PGP)-containing oligopeptides show the stability quite comparable with those of major pharmacological preparations.