l-glutathione reduced skin lightening 1.98.0%~101.0% food grade 2.JP standard,SGS/GMP 3.sample free 4. ... professional manufacturer in China ,1.Specification(1).Assay:98.0%~101.0% L-Glutathione Reduced(2).Assay:8%, 15%, 50% yeast ... -Glutathione.2.ApplicationGlutathione is Widely used in medicine, health products, food, beverage, cosmetics, biological and chemical reagents and other industries.3 ...