GHK-Cu: From Cosmetics to Prescription Medicine
GHK-Cu occupies an unusual position in the peptide landscape. It appears in premium cosmetic skincare formulations and in pharmaceutical wound healing research simultaneously. A physician-prescribed protocol is categorically different from a topical cosmetic — the route of administration, concentration, and clinical context are entirely different.
What the Research Shows
In vitro studies consistently show GHK-Cu stimulates fibroblast proliferation and collagen synthesis. A landmark 2012 study found it modulated over 4,000 genes related to tissue remodeling. Plasma levels of GHK decline significantly with age — from approximately 200 ng/ml at age 20 to 80 ng/ml by age 60 — which has driven interest in supplementation as a longevity intervention.
Protocol Structure
GHK-Cu protocols vary by administration route and clinical goal. Physicians consider topical, subcutaneous, and oral formulations depending on the indication. Protocol duration is typically 8-12 weeks with assessment of skin parameters at completion.
Currently Available
Unlike BPC-157 and TB-500, GHK-Cu was not affected by the Category 2 reclassification — it has been available through licensed compounding pharmacies throughout. My Body Labs includes GHK-Cu in its Skin and Collagen protocol.