Citric acid is an alpha hydroxy acid used in personal care products to adjust the acidity or promote skin peeling and re-growth in the case of anti-aging products. Citric acid is naturally found in citric fruits and juices, providing the characteristic acidic taste. I use ONLY Non-GMO, Organic citric acid in Re-Dew Body Products.
Source: http://www.ewg.org/skindeep/ingredient/701385/CITRIC_ACID/#