Acnestar Gel is composed of two medicines namely: Clindamycin and Nicotinamide. Clindamycin is a lincomycin antibiotic that penetrates the skin and helps kill acne-causing bacteria. On the other hand, Nicotinamide is a form of vitamin B which is responsible for exerting anti-inflammatory effects that are applied to the skin. Together, they help to reduce the swelling, redness and tenderness caused by acne or pimples. Besides this, it also prevents the formation of pimples, blackheads and whiteheads on the skin.