Customer Reviews
Real feedback from researchers and customers. Every review is tied to a verified purchase.
Highest copper-loading I've measured in a commercial GHK-Cu
Ran inductively coupled plasma analysis to confirm copper content. Their lot had near-stoichiometric Cu loading, which not all suppliers achieve. Excellent product for serious dermal-research work.
first time buyer, will buy again
easy ordering. arrived in 3 days. blue. high purity. no surprises
blue is real blue
the blue color is intense which is what you want for actual ghk-cu (the copper complex is blue). we've gotten lots from other suppliers that were nearly clear which makes you wonder. this is the real deal.
Cold pack was warm
By the time the package got to me the gel pack was already room temp. Probably fine for lyophilized stuff but felt like the cold-shipping claim was overstated for cross-country.
no instructions for reconstitution
I had to look up reconstitution myself. Knowledge base has the info but it should be in the box.
Exactly as described
Consistent with the COA. Our collagen synthesis assays showed clear dose-dependent activity. Premium product.
Outstanding copper peptide
The 50mg format is generous. Blue color confirms copper complexation. Purity exceeded expectations at 99.1%.
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All peptides are HPLC verified ≥98% purity with published COAs.