AFAs

Naturally occurring acidic amino acids in the skin constitute what is generally described as the “primary moisture retention factor of human skin.” In heavily oxidized, sun damaged skin, acidic amino acids are markedly decreased, and moisture retention is significantly reduced. An independent, university study described that these acidic amino acids, the same ones used in AFA Gels, are capable of penetrating into the stratum granulosum and significantly increasing moisture retention by as much as three-fold. This accounts for the dramatic increase in skin’s moisture retention. 

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