Semax 10mg
$80.00
- Free US shipping over $150
- HPLC-tested at 99%+ purity
- US-based fulfillment
Overview
Description
A cognitive peptide researched for supporting focus, memory, and mental endurance without overstimulation. Often used for productivity, training intensity, and high-demand workdays.
Semax is commonly associated in research with brain resilience and performance under stress— making it a popular option when clarity and output matter most.
Scientific Overview
Semax is a synthetic peptide derived from adrenocorticotropic hormone (ACTH) fragments and studied for nootropic and neuroprotective properties. Research suggests potential effects on neurotrophic signaling, stress-response pathways, and cognitive performance metrics in experimental models. It remains of interest for attention, memory processes, and resilience-related research.
Product Details
- Compound: Semax (synthetic peptide derived from ACTH)
- Vial Size: 10mg
- Purity: ≥99%
- Form: Lyophilized powder
This product is intended strictly for laboratory research purposes only. It is not approved for human or veterinary use by the FDA or any other regulatory agency. Store in a cool, dry environment prior to reconstitution and handle using appropriate laboratory and aseptic techniques.
Frequently asked questions
Yes. Every batch of Semax 10mg undergoes independent third-party testing using High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS). The Certificate of Analysis is published and accessible from the product page.
Semax 10mg sold by MHS Longevity is verified to 99%+ purity, with the result documented in each batch's Certificate of Analysis. Anything below that threshold is rejected before release.
The Certificate of Analysis for Semax 10mg is available directly from the product page and on our Third-Party Test Results page. Each COA includes the batch identifier, test date, testing method, and verified purity percentage.
Semax 10mg ships from our US-based facility with standard or expedited options. Orders over $150 qualify for free standard US shipping. All orders are packaged discreetly with documented handling protocols.
No. Semax 10mg is supplied strictly for laboratory research purposes only. It is not approved by the FDA for human or veterinary use, and it is not intended to diagnose, treat, cure, or prevent any disease.
MHS Longevity is a veteran-owned operation focused on pharmaceutical-grade research compounds. We source from vetted manufacturers, batch-test independently with HPLC and Mass Spectrometry, and publish every Certificate of Analysis. Pricing is transparent and the testing process is documented end-to-end.
Semax has a molecular weight of approximately 813.9 g/mol, with the empirical formula C37H51N9O10S. This is documented on each batch's Certificate of Analysis alongside the Mass Spectrometry result.
Semax and Selank are both synthetic heptapeptides developed for neuromodulation research in Russia, but they descend from different parent molecules — Semax from ACTH(4-10), Selank from tuftsin. Their amino-acid sequences are entirely different, and the published research on each describes distinct pathways. We stock both as separately tested compounds.
Semax is sent to an independent third-party laboratory for HPLC and Mass Spectrometry analysis before each batch is released. The lab's identifier and test date are published on the Certificate of Analysis for that batch.
Most of the published Russian research literature uses an intranasal formulation. We supply Semax as a lyophilized powder for laboratory reconstitution; a combination Selank/Semax nasal-spray product is separately available and is tested on the same HPLC/MS schedule.
Research & buying
The evidence behind Semax 10mg and the questions to ask any vendor before you order.
Research details — Semax 10mg
Semax is a synthetic heptapeptide derived from the N-terminal fragment of adrenocorticotropic hormone (ACTH), with a Pro-Gly-Pro tail added to extend in-vivo stability. It was developed in the late 1980s at the Institute of Molecular Genetics in Moscow as a research compound for studying neuromodulation and cognitive pathways. This guide explains what Semax is, the published research context, and how independent third-party testing verifies that what's in the vial matches the label.
What is Semax?
Semax has the amino-acid sequence Met-Glu-His-Phe-Pro-Gly-Pro. The first four residues correspond to fragment 4–7 of ACTH; the Pro-Gly-Pro extension was added by the developers to slow enzymatic degradation. The molecule is supplied as a lyophilized powder for laboratory reconstitution.
Semax is sold strictly for laboratory and research use. It is not approved by the FDA or any other regulatory body for human or veterinary use, and nothing in this guide constitutes guidance for human administration.
Research context
Published research on Semax has examined modulation of neurotrophic factors — including BDNF and NGF expression — alongside effects on monoaminergic systems in rodent and in-vitro models. The compound is referenced in Russian-language clinical literature with translations available; researchers should evaluate primary sources and reproducibility considerations directly.
How Semax quality is verified
Every batch of MHS Longevity Semax is submitted to an independent third-party laboratory before release. Two complementary methods are used:
- HPLC (High-Performance Liquid Chromatography) separates components by chemistry. The area under the Semax peak as a percentage of total peak area is the purity result. Anything below 99% is rejected.
- Mass Spectrometry (MS) confirms the molecule's identity by measuring the mass-to-charge ratio of ionized fragments. HPLC measures how pure; MS measures what.
What a Semax Certificate of Analysis shows
- Compound name and structural designation. Semax, with the full sequence (Met-Glu-His-Phe-Pro-Gly-Pro) and molecular formula.
- Batch identifier. The unique ID linking certificate to vial.
- Test date. When the analysis was performed. Recent dates matter — peptides degrade.
- Method. HPLC, MS, or both, with column and mobile-phase notes where relevant.
- Verified purity %. The HPLC result. We require 99%+.
- Lab and signatures. The independent lab performing the analysis, with analyst attribution.
Storage and handling (research lab context)
Lyophilized Semax should be stored at -20°C or below for extended stability. Once reconstituted in bacteriostatic water, the solution is typically held at 2–8°C and used within the documented stability window for that compound. Repeated freeze–thaw cycles should be avoided, and the powder should be protected from light and moisture throughout. Aseptic technique applies during reconstitution.
Where to buy Semax 10mg
The same eight questions apply whether you're buying Semax 10mgfrom us or anywhere else. Vendors who can't answer any of them are worth a closer look.
Vendor evaluation checklist
1. Is the Certificate of Analysis public and downloadable?
A vendor unwilling to publish HPLC/MS results for the batch you're buying has nothing to verify their purity claim against.
2. Which testing method was used — HPLC, Mass Spectrometry, or both?
HPLC measures purity. Mass Spectrometry confirms the molecule's identity. Reputable batches go through both.
3. What's the verified purity percentage on the published COA?
Industry research standard is 99%+. Below that, you're paying for a compound diluted with synthesis byproducts.
4. Where does the product ship from?
US-based fulfillment generally means shorter handling times, customs-free delivery, and clearer return remedies.
5. Is the price published at a single list rate, or hidden behind tier locks?
Opaque pricing is a yellow flag. Transparent vendors quote the same number to every customer.
6. What's the free-shipping threshold, if any?
Compare the all-in cost (product + shipping + handling) — not just the headline price.
7. How is the product stored prior to shipment?
Lyophilized peptides degrade with temperature swings. Vendors should disclose temperature-controlled storage.
8. Is there a documented damage-claim and return policy?
Discreet shipping carries handling risk. A clear, written policy protects you when something goes wrong.
MHS LongevityThis site - Price
- $80
- Purity
- 99%+
- Testing
- HPLC + MS
- COA public
- US-based
- Free shipping
- $150+
- Last checked
- May 13, 2026
| Vendor | Price | Listed purity | Testing method | COA public | US-based | Free shipping | Last checked |
|---|---|---|---|---|---|---|---|
MHS LongevityThis site | $80 | 99%+ | HPLC + MS | $150+ | May 13, 2026 |
Competitor data sourced from each vendor's public product page on the date shown. Listed purity reflects each vendor's own published claim; Certificate of Analysis availability is verified at the URL above. Data may have changed since last check.