GHK‑Cu copper peptide
The Copper Peptide Serum
Firmer skin and better texture, from the one peptide with real human trials behind it. Two drops, morning and night.
Every batch tested four ways. Read the certificate.Copper means proven in humans on this site. Green means an approved medicine. Grey means we will not sell it to you.
Human trials. On sale now.
Human trials. On sale now.
Approved medicine. Needs a prescriber, not a cart.
Rats only. We will not sell it.
Rats only. We will not sell it.
Four tests. Every batch.
Most brands in this category show you a purity number and hope you stop asking. We run four separate tests on every batch and publish the certificate whole, lot number matching the bottle in your hand.
HPLC purity
How much of what is in the bottle is the peptide, to the decimal.
Mass spec identity
Proof the molecule is the molecule. Purity means nothing without it.
Endotoxin
Its own test, its own number. Not implied by a purity figure.
Sterility
Tested and reported separately, every batch, no exceptions.
Grades on this site describe the human evidence behind a compound: A approved or randomised trials, B smaller human trials, C human pharmacokinetics, none animal data only.