Introduction Introduction GHK-Cu ( glycyl-L-histidyl-L-lysine : copper ) is a naturally occurring tripeptide-copper complex commonly known as the copper peptide. First identified in the 1970s, GHK-Cu is present in human plasma, saliva, and urine and has become a major research focus for its potential roles in skin repair, hair growth, wound healing, and tissue regeneration. Preclinical and cosmetic-science studies suggest that GHK-Cu supports collagen synthesis, angiogenesis, and anti-inflammatory and antioxidant responsesmaking it one of the most widely studied peptides in regenerative biology. GHK-Cu Fast Facts Type: Naturally occurring tripeptide (Gly-His-Lys) complexed with copper (Cu) Discovered: 1973 Dr
Topical vs Injectable GHK-Cu: What Beginners Should Know Topical GHK-Cu: Beginner-friendly
Different mechanisms, different side-effect profiles
Research-grade GHK-Cu sold by suppliers like Koi Peptides is for in vitro laboratory research only and is not for human or veterinary use.
For readers interested in the broader connection between peptides, hormonal balance, energy, and skin aging during midlife transitions, this guide to peptides for perimenopause offers additional context
The complex proteins in your skin, such as collagen and elastin, need peptides for carrying out their normal functions