Recent science casts doubt on collagen's skin claims, but the Australian Institute of Sport says it may have a role in tendon and ligament health.
Athletes take it before a workout to strengthen tendons and ligaments. Others stir it into their morning coffee hoping to attain more youthful skin.
No, it's not creatine, but another much-hyped supplement beginning with a C.
Experts have doubts about collagen's skin claims.
Author's summary: Experts question collagen supplement benefits.