≥99% PURITY GUARANTEEDTHIRD-PARTY TESTEDSAME-DAY SHIPPING USAFREE SHIPPING $200+

Buy Semax in the USA

Synthetic ACTH-derived nootropic — increases BDNF, sharpens focus, and supports neuroprotection.

≥99% HPLC + MS purityThird-party COA (Janoshik Analytical)Same-day NY shipping

Available sizes — Semax

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Need full product specs, batch COA, or related products? View the full Semax product page →

Why buy Semax from BioInfinity

Every Semax lot we ship is validated by Janoshik Analytical via HPLC and mass spectrometry. The corresponding Certificate of Analysis is referenced from the product page so researchers can verify the exact batch they received. We do not ship without an in-hand COA.

Orders placed before 2 PM ET ship the same day from our New York research-supply facility. Free shipping is included on orders over $200, and every order includes batch-specific COA documentation.

About Semax

Semax is a synthetic heptapeptide derived from adrenocorticotropic hormone (ACTH) fragment 4-10, extensively studied for nootropic, neuroprotective, and neurorestorative effects. Originally developed in Russia for stroke recovery, it delivers rapidly to the brain and increases BDNF (Brain-Derived Neurotrophic Factor) levels via the CREB pathway while modulating dopamine and serotonin systems.

Recent 2024–2025 research has documented efficacy in Alzheimer's disease models (reducing amyloid inclusions and improving cognitive function), and emerging applications in ADHD, focus, memory, and neurodegenerative conditions. A cornerstone of cognitive-enhancement research. For research use only. Not for human or veterinary consumption.

Researchers should refer to peer-reviewed publications for primary sources on this compound. Semax is sold strictly for laboratory research use and is not intended for human or veterinary use.

Storage and handling

Lyophilized Semax stores at −20 °C protected from light; reconstituted solution refrigerates at 2–8 °C per laboratory SOP. Reference your lot's COA for compound-specific guidance and see our [Preparation Guide](/learn/preparation-guide) for laboratory handling instructions.

Same-day USA shipping

BioInfinity ships Semax same-day from New York for all orders placed before 2 PM ET, Monday through Friday. We use insulated cold-shipping where indicated. International researchers should review our /shipping page for region-specific guidance.

Verified reviews — Semax

1 verified buyer

5.0 / 5
Suzanne R.Verified buyer
Jun 13, 2026
Purity great, fast shipping, great price!

Wonderful first time experience with this product.

Reviews are submitted by verified buyers via per-order tokenized links. Reviews are evaluated for product-focused content; any review containing therapeutic claims (cured, treats, healed, etc.) may be edited or hidden to maintain compliance with FDA and platform guidelines.

Order Semax from BioInfinity

Same-day shipping from New York, ≥99% HPLC-verified purity, and a third-party COA on every lot.

Buy Semax now

For laboratory research use only. Not for human or veterinary use.