This is really just about influencers in a huge market, and not about good science. Caufield added that theres a political element to the peptide craze
BMC Clin Pathol
The Lin28/let-7 axis regulates glucose metabolism
Most clinical studies show that 812 weeks of consistent oral supplementation (250500 mg/day) may slightly lighten skin tone and improve evenness
Balanced meals throughout the day meaning the kinds that include different whole food groups, colors, variety, etc
Often, it's deeper systemic issues like hormonal imbalances (androgens are a major culprit), chronic stress (hello, cortisol!), and, increasingly recognized by science, poor gut health and systemic inflammation