Benzac-Ac 2.5% Gel 60gm is an anti-bacterial medicine used to treat acne. Acne appears as spots or pimples on your face, chest or back. This medicine works by attacking the bacteria that cause them .targeted spot treatment for the bacteria that causes acne. removes excess oiliness as well as rehydrating the skin during treatment. Reduces blackheads and whiteheads. Clears blocked pores.