One quick answer is calorie restriction or some form of it
In the past, consumers often learned about skincare products through advertisements or beauty magazines
Side effects reported across these peptides are mostly mild and localized: injection-site soreness or redness, occasional headache, fatigue, or lightheadedness show up repeatedly for BPC-157, TB-500, GHK-Cu, Thymosin Alpha-1, and CJC-1295/Ipamorelin, with PEG-MGF users also reporting flu-like symptoms and temporary water retention
GHK-Copper markedly improves skin's complexion, reduces appearance of wrinkles and lax skin while helping to restore a firm, youthful look
The result is deeper collagen remodeling, faster post-procedure recovery, and more visible changes in texture and firmness