ZO Skin Health Aknetrol is a powerful acne treatment containing 10% Benzoyl Peroxide. This professional-grade formula is designed to effectively control and treat acne breakouts while being gentle enough for daily use. This is a medical-grade skincare product containing 10% Benzoyl Peroxide as its active ingredient. The product comes in a 60mL/2 fl. oz tube and is part of the ZO Skin Health line developed by Zein Obagi MD. As this is a medicated product, it should be used as directed and patch tested before full application. May cause skin sensitivity and dryness.