Pernex AC 5% Gel 20g contains benzoyl peroxide, a potent acne treatment that works by killing acne-causing bacteria, reducing inflammation, and preventing clogged pores. The 5% concentration is stronger, making it suitable for moderate to severe acne. The gel is applied topically to affected areas, helping to clear breakouts and prevent new ones. The 20g tube is designed for targeted application, providing effective acne management with regular use.