Formula AC-3 for Acne - 3.5% Benzoyl Peroxide in Formula AC-3 treats inflammatory acne, unclogs & clears pores and sheds dead skin cells while fading acne scars. The active is used as an antibacterial potent to treat acne. It also clears out dead skin cells and sebum trapped on the surface, allowing new skin to resurface and simultaneously fading acne scars. Benzoyl Peroxide unclogs pores infected with bacteria, dead skin cells, and excess sebum. It keeps the skin clean and protects it from breaking out.