How to Read a GHRP-6 Certificate of Analysis
What KYIN Peptides' GHRP-6 certificate of analysis actually reports, and how to independently verify it.
What KYIN's GHRP-6 COA Reports
Every batch of KYIN's GHRP-6 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 GHRP-6's expected hexapeptide sequence (His-D-Trp-Ala-Trp-D-Phe-Lys-NH₂).
Distinguishing GHRP-6 From Related Ghrelin-Receptor Peptides
GHRP-6, hexarelin, and Ipamorelin are all ghrelin-receptor agonists with distinct sequences and meaningfully different research profiles — GHRP-6's broader off-target activity in particular is a defining research characteristic, not an impurity. A certificate that confirms the correct GHRP-6 sequence via mass spectrometry, rather than one of these related peptides, is essential given how much their research profiles differ despite acting on the same receptor.
A Well-Established Compound With a Long Manufacturing History
Unlike some of the newer compounds referenced on this site, GHRP-6 has been manufactured and studied for decades, which generally means contract manufacturers have significant production experience with its synthesis. That doesn't remove the need to check each batch's certificate, but it does mean synthesis-related purity issues are somewhat less common for GHRP-6 than for more recently characterized peptides — most quality concerns in the market instead relate to sourcing and labeling rather than synthesis quality itself.
How to Verify Independently
Confirm a GHRP-6 certificate is genuine by searching its batch number at Janoshik's independent database, janoshik.com/verify, rather than relying on the document alone. Our general How to Read a Certificate of Analysis guide explains what each section of a certificate is telling you.
GHRP-6 testing questions
What purity does KYIN Peptides' GHRP-6 meet?
KYIN Peptides' GHRP-6 is independently tested by Janoshik to over 99% purity, with mass spectrometry identity confirmation of the hexapeptide sequence — see the current batch's certificate of analysis on the product page.
Why does it matter whether a batch is GHRP-6 specifically, versus hexarelin or Ipamorelin?
GHRP-6, hexarelin, and Ipamorelin act on the same receptor but have meaningfully different research profiles due to differing binding selectivity. A batch confirmed as the correct GHRP-6 sequence via mass spectrometry ensures the research profile matches what's expected.
Interested in GHRP-6?
See pricing, current batch purity, and the full certificate of analysis on the product page.