The 2% and 5% topical formulations require no prescription, though higher concentrations or oral formulations fall under different regulatory categories
These molecules are known as hormones
Common side effects Injection site reactions: Redness, mild swelling, itching
Topical application: skin surface anti-aging, wrinkle reduction, facial skin rejuvenation, localized wound care, and hair growth support where scalp delivery is the target Subcutaneous injection: post-surgical wound recovery, systemic wound healing support, GI mucosal healing protocols, and combination use with BPC-157 and TB-500 Topical delivery challenges: GHK-Cu does not penetrate the skin barrier easily in standard formulations
(1,2) Glutathione catalyzes glutathione S-transferases (GST) and glutathione peroxidases (GPx)
Redness at the site Expected with GHK-Cu A pink patch that appears quickly and fades within hours