Works against acne-causing Propionibacterium acnes (P. acnes). Works on the cells that line hair follicles by changing the way they mature and proliferate, which decreases follicular ‘plugging’ & helps prevent blackheads, whiteheads. Has anti-keratinizing effect on normal skin & reduce the synthesis of filamentous keratin & prevents excessive keratinization of hair follicles. Inhibits the production of reactive oxygen free radicals and exerts anti-inflammatory effects. Inhibit tyrosinase activity and pigment synthesis in abnormal pigment cells & inhibits DNA synthesis and mitochondrial enzyme activity in abnormal pigment cells. Help reducing malignant cell proliferation activity & prevent malignant melanoma from developing in malignant freckles. Especially effective for post-inflammatory hyperpigmentation (that often comes with acne) and melasma.