Hydroxyproline is found in collagen but your body can synthesize Hydroxyproline so it's not like collagen is the only way to get what you need which is how peop

Hydroxyproline is found in collagen but your body can synthesize Hydroxyproline so it's not like collagen is the only way to get what you need which is how people/products make it sound. Any known benefits from taking in glycine, proline, and hydroxyproline in the form of collagen are very specific to a small portion of the population (such as OCD sufferers) and, as you mentioned, only in very large doses. There are certainly ways to improve your skin/connective tissue without buying into what is mostly a marketing gimmick.