GHK-Cu: collagen and structure GHK-Cu is a copper-binding tripeptide associated with regulation across more than 4,000 genes, including collagen synthesis, antioxidant defense, wound healing, inflammation, and tissue breakdown. Circulating levels decline with age, from roughly 200 ng/mL at age 20 to about 80 ng/mL by 60. It clears damaged matrix while helping new collagen form and cross-link into stronger structure (matrix remodeling and lysyl oxidase activation). BPC-157: blood supply BPC-157 is a 15-amino-acid fragment from gastric juice
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Wang H, Peng G, Bai J, He B, Huang K, Hu X, et al
Mol Nutr Food Res 52(11):13051315 Jamieson DJ (1998) Oxidative stress responses of the yeast Saccharomyces cerevisiae
Kanashiro-Takeuchi, R
Weeks 4-8: Early Changes Skin texture improvements often become noticeable around week 4-6 for many users