Benzoyl peroxide is a common ingredient found in many over-the-counter acne treatments. It works by killing the bacteria that cause acne and helping to unclog pores. This powerful compound can reduce inflammation and prevent new breakouts, making it a popular choice for those struggling with acne. When using benzoyl peroxide, it's important to start with a lower concentration to see how your skin reacts. Some people may experience dryness or irritation, so applying a moisturizer can help. Always follow the instructions on the product label and consult a dermatologist if you have concerns about using benzoyl peroxide.