It is the most clinically studied of the three, with topical trials showing collagen, fine-line, and skin-density changes, and a large body of in-vitro work on gene expression and wound healing
HCG (human chorionic gonadotropin) While technically not a peptide (it's a glycoprotein hormone), HCG deserves mention as it's commonly used with peptides
FoxOs are involved in the control of angiogenesis, stem cell proliferation, cell adhesion, oxidative stress responses, as well as innate and acquired immunity
But randomized controlled trials of these molecules, which suppress inflammation throughout the body, were abandoned because they showed no clear benefit
No dose, schedule, or administration instruction appears anywhere below those are outside the scope of a research-use article
Patients are instructed to report unusual symptoms (e.g