Collagen is a protein needed for bone and skin health. Possible side effects of collagen include stomach upset, allergic reactions, and a rare skin reaction.

And in recent years, one such treatment has caught the attention of social media influencers and celebrities like Kim ...

Tell me what you’re made of? What is the glue that holds you together? Collagen and it is one of the most abundant proteins in the body. As we age collagen production starts to decline. And the loss ...