Özer O.2019-10-262019-10-2620081300-02921300-0292https://hdl.handle.net/11454/21194The use of cosmeceuticals has significantly risen in recent years. They're topical cosmetic- pharmaceutical hybrids which contain ingredients that influence the skin's biological function. Cosmeceuticals have to be safe and meet consumer demands for high efficacy. In order to avoid undesired effects, the efficiency and possible reactions of skin care products composed of different ingredients must be tested and proven scientifically. © 2008 by Türkiye Klinikleri.eninfo:eu-repo/semantics/closedAccessClassificationCosmeticsEfficiencyArticle286 SUPPL.S175S177Q4