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Lyophilized GHK-Cu maintains potency for 18-24 months or longer when frozen

In cosmetic product studies, GHK-Cu was found to tighten loose skin, improve elasticity, density, and firmness, and reduce fine lines, wrinkles, photodamage, and hyperpigmentation

Individual grafts are extracted directly from unshaven hair, allowing patients to return to work and public life with no visible sign of having had a procedure

During sign-up, users complete a medical intake form and choose their provider for their initial consultation

It belongs to a wider set of peptides moving through longevity and biohacker circles, including BPC-157, Cerebrolysin, Semax, Selank, Dihexa, P21, and the neurotrophic factors BDNF and klotho, whose human cognitive evidence ranges from thin to absent and which I reviewed in detail here