For example, oral collagen peptides containing Gly-Pro-Xaa tripeptides, particularly those with an 11.4% concentration, significantly enhance protection against UV-induced photoaging, improving skin elasticity, epidermal thickness, and reducing inflammation [110]
The only relative contraindication that I tell people, and a lot of people say, oh, there's no side effects that I know of, but if you have a family history of melanoma or potentially have a melanoma and don't know about it, that's why I'm a big advocate of dermoscopy as well and regular skin checks, then theoretically it's going to increase that alpha melanocyte stimulating hormone and it can grow that
Both tirzepatide and Semaglutide GLP-1 offer benefits beyond weight loss
Bioavailability determines what percentage of the injected dose actually reaches systemic circulation