Garcinia mangostana fruit hull contain antioxidant compounds. A concentrated extract of Garcinia mangostana fruit hull in 50% ethanol and 0.05M NaOAc pH 5,5 buffer, had an in vitro antioxidant activity (IC50) of 47.3 μg/mL, when measured by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method. However, this concentrated extract was toxic when applied to keratinocyte cells, with IC50 of μg/mL.…