Our expert says:
This is an interesting question! Collagen that has been lost from areas such as the skin and joints must usually be re-introduced into the area by injection or some other means. If you make brawn and eat it, your digestive system will break it down to amino acids which will then be absorbed into the blood stream, so you won't actually be absorbing the collagen itself, just its building blocks which the body may or may not use to make new collagen or other body proteins.
Discuss the use of fillers with a Dermatologist for collagen lost from the skin and consult an Orthopaedic surgeon regarding new techniques for replacing collagen lost from joints, etc.
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