creatine

Creatine is an amino acid found in the human body and most type of meat and fish. This ingredient serves as the precursor to adenosine triphosphate.

References for this information:

Journal of Cosmetic Dermatology, March 2011 and December 2011, pages 15-23 and 273-281
Journal of Investigative Dermatology, February 2005, pages 443-452
Journal of the American Academy of Dermatology, Volume 52, Issue 3, Supplement P32, March 2005, page 225
Biochemical and Biophysical Research Communications, January 2002, pages 47–52

See skin-restoring ingredients

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