creatinine

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Cell-Communicating Ingredients
Compound formed by the metabolism of the amino acid creatine. Creatine resides primarily in muscle tissue and blood and is normally excreted in the urine as creatinine. Both creatine and creatinine are cell-signaling ingredients in the body. Theoretically, they should perform a similar function when applied topically, but there is no research to support this. Research on oral supplementation with creatinine has had mixed or unimpressive results, particularly for those who take it to build lean muscle mass (Source: www.naturaldatabase.com).

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