Collagen is a protein that supports bone and skin health. It is generally considered safe to take a liquid or powder collagen supplement. Possible side effects of collagen supplements include stomach ...

Collagen supplements that claim to improve your skin health are increasingly popular. We've looked into the science to see if ...

Fig. 1. Influences of treatments on skin hydration indexes, including water content (A) and Transepidermal water loss (TEWL) of volunteers (B) *: Intra-group significance difference, P ...