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Collagen plays a vital role in skin and joint health, but we produce less of it as we age
Once the tetrapeptide Ac-His-Phe-Arg-Trp-NH 2 was identified as a message sequence of melanotropin, responsible for minimal physiological action in the frog [10] and lizard [11], a wide range of analogs was synthesized by the group of V
10.2165/11590240-000000000-00000 63 FuchsH.BinderR.GreischelA
The number is expected to rise significantly over the next decade
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