Cognitive & Neuropeptide Research

Semax Research Peptide

Semax is a chain of seven amino acids.

$35.00

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1vial

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Research Use Only · Not for human or veterinary consumption.

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Semax research peptide, >99% purity by HPLC, CAS 80714-61-0, lyophilized powder for in-vitro laboratory research, Pure Peptides
>99% purityHPLC + MS-UPLC

Certificates of Analysis

Every batch is tested by an independent laboratory before release.

Verify Batch. Lot-level COA, Batch DF/SEM/062026. Check the batch number printed on your vial against the certificate below, which reports the tests run on it.

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What is Semax?

Semax is a chain of seven amino acids. Four of them are copied from a natural human hormone called ACTH, and the other three are added on the end to slow the chain being broken down. It came out of a Russian research program in Moscow and almost all the published work on it is Russian. It has been studied in rats and in rat brain cells, and in people recovering from an interruption of blood flow to the brain.

Product information reviewed by Dr. Martina Rossi, PhD

Scientific Contributor and Reviewer · Reviewed

Semax Research & Reference

What Semax does in published studies, and how to work with it in the laboratory, are covered in full on two dedicated pages rather than summarised here, so neither the evidence nor the handling detail is cut short.

Technical Specs

CAS Number80714-61-0
Molecular FormulaC37H51N9O10S
Molecular Weight813.92 g/mol
SequenceMet-Glu-His-Phe-Pro-Gly-Pro
Purity>99%
Physical FormLyophilized Powder
TestingHPLC + MS-UPLC
SKUSEMAX
Batch No.DF/SEM/062026

Labeled quantity is net peptide content, not gross salt weight.

Semax Batch Results

Batch DF/SEM/062026

Laboratory
Kovera Labs
Certified
August 13, 2026
Sample
10 mg vial
Report
KVR-2026-0913E5

An independent laboratory, Kovera Labs, tested a sample from this batch. These are the results on its certificate.

Purity

Pass

99.621%

RP-HPLC, C18 column, 214 nm

Identity

Pass

Confirmed

LC-MS

Purity is an HPLC figure: the main peak’s share of everything the detector recorded at one wavelength. It’s not a weight. What a purity figure counts →

Check it with the lab. Kovera Labs’ verification page looks a certificate up by its report number. Product, batch, date and results should match this page.

Chromatogram

RP-HPLC · C18 · DAD 214 nm

Chromatogram from certificate KVR-2026-0913E5 for Semax batch DF/SEM/062026.
The detector trace printed on the certificate, from the run behind the purity figure. How to read this certificate →

Frequently Asked Questions

Is Semax third-party tested for purity?+

Yes. Every batch of Semax is tested by an independent third-party laboratory using HPLC and MS-UPLC, confirming purity and mass identity before the batch is released. Pure Peptides does not test its own material.

Can I see the Certificate of Analysis before buying?+

Yes. The Certificate of Analysis for the batch currently in stock can be viewed and downloaded directly on this page, before you place an order. Each certificate states the batch number, the measured purity, and the date of analysis, and can be verified independently with the issuing laboratory using the report number it carries.

What does "Research Use Only" mean?+

It means Semax is supplied for in-vitro laboratory research and for no other purpose, and must not be administered to humans or animals. Semax is legal to purchase in the United States for in vitro and non-clinical laboratory research. It carries no FDA or MHRA marketing authorisation. Semax is not a scheduled substance under the Controlled Substances Act. Sold strictly for qualified research use, not human or veterinary administration.

How is Semax shipped and stored?+

Semax ships from US stock with cold-chain packaging and full tracking; orders placed before noon EST on business days are typically dispatched the same business day. On arrival, store the lyophilized powder at -20°C or below, dry and protected from light.

How stable is Semax after administration?+

Published work in rats reports rapid enzymatic degradation. Two minutes after an intranasal dose, about 80% of the labeled material recovered from brain was intact Semax and the remainder was metabolites; across biological samples the tripeptide Pro-Gly-Pro predominates.

Is Semax the same as ADAMAX?+

No. ADAMAX is this heptapeptide with an acetyl group added at one end and an adamantane group at the other. Those modifications make it a different compound, and no published study has measured what they change. Research findings for Semax are not findings for ADAMAX.

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Dr. Martina Rossi, PhD

Reviewed for scientific accuracy

Dr. Martina Rossi, PhD

PhD, Université Grenoble Alpes · Scientific Contributor and Reviewer

Dr. Rossi's doctoral research at Université Grenoble Alpes examined the vascular functions of bone morphogenetic proteins. Her peer-reviewed work spans cell and molecular biology, vascular biology, and gene therapy, in journals including Cardiovascular Research, Scientific Reports, and Brain Sciences. She reviews Pure Peptides' product, reference, and research pages for scientific accuracy against the sources they cite.

Reviewed ORCIDGoogle ScholarTeam profile →

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