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  GREAF focuses on developing high-quality cosmetic active ingredients, herbal extracts and fermentative ingredients in steps of global novel biotechnology. Consequently, GREAF has established first-class R&D center and has introduced a comprehensive product safety and efficacy evaluation system that combines molecule, cell, 3D epidermis and clinic level. Since 2010, Greaf has updated patch test model for anti-inflammation efficacy evaluation and developed tyrosinase model for whitening efficacy evaluation.