Follicle Size and Anagen Extension In a 1993 study by Pickart and colleagues, topical GHK-Cu applied to mice with surgically induced wounds significantly increased hair follicle size and triggered follicles from telogen back into anagen
Risk factors include vegetarian or vegan diets, age over 50 (reduced gastric acid impairs absorption), proton pump inhibitor use, prior gastric surgery, and Type 1 diabetes
They are convenient, cost-effective, and offer a consistent source of this essential vitamin
GHK-Cu is a naturally occurring copper-binding peptide found in human plasma, saliva, and urine
These numbers come from rodent studies scaled to a human size, not from human clinical trials