More importantly If they're as good as people claim and also what brand is reliable?
I am fast approaching 30s my skin has never been particularly great and I've noticed sagging around my mouth (in the right light) around 24. Looking on a board recently I noticed someone recommending collagen supplements as they are supposed to help skin elasticity and so on.
So as above.
Are collagen supplements good and safe?
What brand do people use/recommend?