Is collagen better to be consumed or applied through creams?

Cosmetic products such as creams for topical applications often contain collagen. There are two problems with collagen in these types of products – firstly, the amount of collagen delivered through this application is way too small to have any real effect, and secondly the collagen in vast majority of creams is not in a form that is able to be absorbed and metabolized into single amino acids that can be used for collagen production by our own skin cells. The only benefit some of these collagen-containing creams deliver is improved hydration through a film-forming effect.

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