GHK-KPV is a joined-motif peptide combining two well-characterized fragments, and confirming the full combined sequence is intact — not just one half of it — is central to purity testing for this compound.
Reversed-phase HPLC
HPLC separates the fully joined peptide from partially synthesized intermediates that carry only the GHK or only the KPV portion, with purity read per understanding HPLC purity.
Mass spectrometry for identity
Mass spectrometry is especially informative here because a lot containing a mix of the standalone motifs KPV and free GHK could show a plausible-looking HPLC trace while not actually being the joined compound — mass confirms the full combined sequence per the chemistry article, distinct from HPLC vs. mass spectrometry generally.
Why joined-motif verification matters
Because GHK-KPV's research premise rests on studying both parallel pathways in one molecule, a lot that is secretly a mixture of the two separate peptides rather than the joined compound would not represent the intended experimental condition.
Documentation to expect
A lot-specific certificate of analysis with HPLC purity and mass-spec identity — see how to read a CoA.
Product page: GHK-KPV research vials.
Research Use Only. Supplied strictly for laboratory research and development — not for human or veterinary use, consumption, or any therapeutic or diagnostic purpose. This article is research education, not usage guidance.