What active ingredient is considered one of the most effective tools in acne treatment?

Benzoyl peroxide is recognized as one of the most effective active ingredients in acne treatment due to its ability to target multiple factors that contribute to acne. It acts as a powerful antibacterial agent, effectively killing the bacteria Propionibacterium acnes, which is often associated with acne formation. Additionally, benzoyl peroxide helps to reduce inflammation and prevent the clogging of pores, which are critical aspects of acne management.

Furthermore, benzoyl peroxide has a keratolytic effect, meaning it assists in the shedding of dead skin cells, helping to prevent the formation of new acne lesions. Its ability to penetrate the skin also allows it to reach deeper layers, where acne often develops. This multifaceted action makes benzoyl peroxide a cornerstone in many acne treatment regimens.

While other options like salicylic acid and tea tree oil also possess acne-fighting properties, they do not match the broad-spectrum efficacy of benzoyl peroxide in terms of treating existing acne and preventing future breakouts. Sodium lauryl sulfate, on the other hand, is primarily a surfactant and does not have significant anti-acne properties.