PCA Advanced Skin Care Systems revolutionized the skin care industry in 1990 by bridging the gap between aesthetics and medicine, developing and marketing the first non-prescription, clinically researched, results-oriented skin care products directly to medical professionals and clinical aestheticians. PCA skin has been and continues to be a trusted industry leader in the development of gentle, yet highly effective professional treatments and daily care products for over two decades Biochemically compatible with human skin, PCA Skin's products contain a unique blend of vital nutrients and Alpha Hydroxy Acids (AHAs) in an aloe vera base. The entire PCA Skin family of skin care products are free of dyes, color additives, synthetic fragrances, comedogenic (pore-clogging) oils, waxes and other ingredients that are known to cause irritation or sensitivity.