How to Read a Semax Certificate of Analysis
What KYIN Peptides' Semax certificate of analysis actually reports, and how to independently verify it.
What KYIN's Semax COA Reports
Every batch of KYIN's Semax is independently tested by Janoshik to over 99% purity. The certificate reports an HPLC purity result and a mass spectrometry identity confirmation verifying the sample's molecular weight matches Semax's expected heptapeptide sequence (the ACTH(4-7) fragment plus the Pro-Gly-Pro stabilizing addition).
Why Full-Sequence Confirmation Matters
As with Selank, a synthesis error that produces the unstabilized ACTH(4-7) fragment alone, without the complete Pro-Gly-Pro addition, would behave very differently in research use due to much faster degradation. Mass spectrometry confirmation of the complete seven-amino-acid sequence is the most reliable way to confirm the stabilized structure is actually present.
Research Peptide vs Prescription Nasal Spray
In Russia, Semax is also sold as an approved prescription nasal spray for stroke and cognitive-decline indications — an entirely different regulatory category, formulation, and delivery route from the lyophilized research peptide KYIN sells for laboratory reconstitution. A certificate of analysis for the research peptide says nothing about, and shouldn't be confused with, the manufacturing standards or approval status of that prescription product.
How to Verify Independently
As with every compound KYIN sells, Semax's certificate is only as trustworthy as your ability to confirm it independently -- do that at janoshik.com/verify using the batch number on your certificate. Our general How to Read a Certificate of Analysis guide walks through the rest of what a certificate reports.
Semax testing questions
What purity does KYIN Peptides' Semax meet?
KYIN Peptides' Semax is independently tested by Janoshik to over 99% purity, with mass spectrometry identity confirmation of the full heptapeptide sequence — see the current batch's certificate of analysis on the product page.
Why does full-sequence confirmation matter for Semax?
An incomplete synthesis that produces the unstabilized ACTH(4-7) fragment alone would degrade much faster and behave very differently in research use. Mass spectrometry confirmation of the complete stabilized sequence is the most reliable way to rule this out.
Interested in Semax?
See pricing, current batch purity, and the full certificate of analysis on the product page.