RT Book, Section A1 Baumann, Leslie SR Print(0) ID 1174541991 T1 Natural Moisturizing Factor T2 Cosmeceuticals and Cosmetic Ingredients YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071793988 LK dermatology.mhmedical.com/content.aspx?aid=1174541991 RD 2024/04/24 AB Natural moisturizing factor (NMF) is found inside keratinocytes and helps regulate stratum corneum (SC) hydration. NMF is a mixture of amino acids including pyrrolidone carboxylic and urocanic acids,1,2 which are water-soluble byproducts of filaggrin.