Each lot of this research peptide is assayed at 99% or higher purity by HPLC-UV, with identity confirmed by LC-MS.
Assayed purity per lot
Batch QC — research-use-only material
Search peptides — top sellers first
Search peptides — top sellers first
Search peptides — top sellers first
Brain-focused peptide studied for memory and focus
$59/ 10mg vial
$29.50 per vial with Buy 1, Get 1 Free
Buy 1, Get 1 Free — add 2 to cart, applied automatically
In stock
Frequently bought together
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Certificate of analysis
We don't publish a brand-wide spec sheet and call it a “COA.” The certificate you receive references the actual lot number stamped on your vial — with the raw chromatograms attached.
Purity by HPLC-UV
99.90%
Contaminant screens
Freedom Diagnostics
Independent analytical lab
Certificate of Analysis
RESULT · PASS
Semax 10mg
HPLC purity
99.90%
Pass · Meets spec
Tested
14 Sept 2026(2 days ago)
HPLC-UV + LC-MS
Analytical results
HPLC Chromatogram
Main peak 99.90% · other 0.10%
Alex JohnsonPrincipal Chemist
Authentichain · Verified 2×
The process
Four steps, every lot. The certificate is published before the vial ships.

Made in a controlled facility
Documented, repeatable steps for every batch.

Purity tested
An outside lab measures it and reports the exact number.

Identity confirmed
A second test proves it is what the label says.
Live
Freedom Diagnostics
99.90%
Purity by HPLC-UV
Report published
Signed, filed by lot number, and public before the vial ships.

Researchers study Semax as acting through three broad routes in the brain.
It is studied for raising BDNF, a protein that supports the growth, survival, and repair of neurons.
In oxygen-deprivation models it's investigated for shielding brain cells from stress-related damage.
Preclinical work looks at how it shifts dopamine and serotonin activity tied to focus and mood.
For research use only. Mechanisms described reflect published preclinical and clinical literature.
Anyone can show you one good report. Here is every batch of Semax we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.
Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.
Published research on the reference compound class. Provided for scientific context only. Not a claim about the product supplied.
Each lot of this research peptide is assayed at 99% or higher purity by HPLC-UV, with identity confirmed by LC-MS.
Assayed purity per lot
Batch QC — research-use-only material
In rodent studies, treated animals showed raised levels of BDNF and its TrkB receptor in the hippocampus — proteins tied to neuron growth and survival — versus untreated controls.
Directional finding — relative heights, not exact magnitudes
In a rodent stroke model, treated animals lost fewer neurons after oxygen deprivation than untreated animals — pointing to a possible protective effect under stress.
Directional finding — neuronal loss after induced ischemia
Quick answers about Semax.
Test any batch at any lab you like. If it doesn't match our report, you get every dollar back. No return shipping, no forms, no arguments.