Topical makes the most sense for: Facial skin texture, fine lines, hydration Scalp application for localized hair growth Scar treatment or post-procedure recovery on a specific area Patients who want to fold GHK-Cu into an existing skincare routine Injectable makes the most sense for: Systemic wound healing (especially internal or in areas you can't easily apply cream) Joint and connective tissue support (topical simply can't penetrate deep enough) Broader anti-aging goals beyond the skin surface Patients already running other injectable peptide protocols (CJC-1295/ipamorelin, BPC-157, TB-500) Here's the thing: for joints specifically, there's no argument
Demand continues to rise because developers require consistent peptide inventory for ongoing formulation projects
From supplements and serums to creams and injectables, you may have noticed it all over your social feeds
BPC 157 has been investigated in preclinical studies, showing promising results in wound healing, tendon repair, and gastrointestinal protection
however, a tiny portion is converted into the reactive metabolite N-acetyl-p-benzoquinone imine (NAPQI) by Cyp2E1 and Cyp1A2