Please choose the correct ending to complete the given sentence: Youth: [header] How to clear mild acne fast [title] Try benzoyl peroxide. [step] If you're looking to clear up acne fast, the most widely used and effective over-the-counter skin cream available is benzoyl peroxide. It can be purchased at most drug stores.

Ending1: You apply this daily to your facial skin and let it sit for 3 to 5 days. [substeps] Benzoyl peroxide is derived from menthol. Ending2: This cream can be especially effective on acne-prone areas, such as the eyes and nose. [substeps] Read product labels carefully to identify the brand name. Ending3: This should be the first option you try for mild acne. [substeps] Benzoyl peroxide works by killing bacteria that causes acne. Ending4: [substeps] Benzoyl peroxide works by killing the bacteria in your skin, which will then make your acne smaller and more noticeable. [title] Allow the acne to fade and/or grow out.

Answer format: ending1/ending2/ending3/ending4