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SEMAX10 mg RUO

Semax

Sharper focus and memory, the Russian-approved nootropic neuropeptide.

  • Sharper focus within hours, a nootropic peptide that builds mental clarity over 2-4 weeks
  • Stimulates BDNF and NGF, the growth factors behind learning and neuroplasticity
  • Approved as a pharmaceutical in Russia and Ukraine, stroke recovery included
Studied for
Focus and clarityMemoryNeuroprotection
≥99% purity HPLC-tested Cognitive & Nootropic
Size
$65per vial

Free shipping over $200 · ships from the USA

Also available

Nasal spray

Pre-mixed 10 ml metered spray, no reconstitution. This compound is commonly studied intranasally.

$9010 ml bottle

Why researchers choose it

Semax is a Russian-developed brain peptide, approved as a medicine in Russia and Ukraine, including for stroke recovery. It boosts the growth factors BDNF and NGF, tunes up serotonin and dopamine signaling, and adds a neuroprotective effect, which is a lot packed into one small molecule. There's no Western trial, so the evidence comes from Russia, Ukraine and nearby states.

Reconstitution reference concentration only, not dosing

Set the vial strength and how much bacteriostatic water you draw into it. This returns the resulting concentration for lab handling. It is a dilution reference, not a dosing recommendation.

mg / mL
Each 0.01 mL — one unit on a U-100 syringe — holds
Syringe drawVolumeAmount in that volume

Most compounds reconstitute with bacteriostatic water; a few acid-loving peptides use acetic acid instead. How much to draw, and how many vials a cycle needs, live in the Complete Peptide Guide, not here.

How much, and how many vials for a full cycle?

Protocol and cycle-length questions get answered in the Complete Peptide Guide, not here. These listings carry no dosing.

Read more →
This compound is supplied for laboratory research use only and is not for human or veterinary consumption. The research summarized here describes published third-party findings, not outcomes from Limitless Peptides, and is not dosing guidance or medical advice. These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease.

How to verify what you received

Every batch we list is third-party HPLC-tested to ≥99% purity. When your vial arrives, these are the handling and quality-control checks a researcher runs before use.

Commonly studied alongside

SELANK10 mg RUO

Selank(10 mg)

Calm focus without the sedation, a Russian-approved anxiolytic peptide.

$59
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Restores the cell-energy coenzyme that halves between age 20 and 50.

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SELANK10 mg RUO

Selank(10 mg)

Calm focus without the sedation, a Russian-approved anxiolytic peptide.

$59

What the research reports 5 citations

  • Approved as a pharmaceutical in Russia and Ukraine, including for stroke recovery, not just cognition.Russian/Ukrainian approval
  • Stimulates BDNF and NGF synthesis, the growth factors that drive neuroplasticity research.PubMed: Semax
  • Upregulates serotonin and dopamine receptors and activates PDGF for neuroprotection.PubMed: Semax
  • Reported effects arrive fast, with mental clarity noted within hours and cognitive changes building across 2-4 weeks, alongside a brief headache in the first one to three days described as typical.researchdosing
  • A US compounding advisory panel voted 8-5 in July 2026 to recommend it for the 503A bulks list, advisory only with FDA rulemaking pending.PCAC vote, Jul 2026

Compound reference physicochemical facts

Class
Neuropeptide
Molecular formula
C37H51N9O10S
Molecular weight
813.9 g/mol
CAS number
80714-61-0
Storage
Lyophilized −20 °C; reconstituted 2–8 °C, kept from light
Semax$65