Active Ingredient Salicylic Acid
Salicylic Acid is a very effective, FDA approved, acne treatment ingredient. It helps remove the debris that clogs pores and penetrates the pore itself to help clean the pore and destroy the P.acnes bacteria. The P.acnes bacteria is anaerobic which means that it can only survive in an environment without air. Salicylic Acid helps air flow into the pore, thus destroying the P.acnes bacteria.

Salicylic Acid is also known to improve skin thickness, barrier functions and collagen production (source: Dermatology 1999, volume 199, number 1, pages 50-53; and Toxicology and applied Pharmacology, volume 175, issue 1, pages 76-82)