Final answer:
The action of benzoyl peroxide as a treatment for acne includes sebum suppression, antimicrobial properties, and a keratolytic effect.
Step-by-step explanation:
The action of benzoyl peroxide (Fostex) as a treatment for acne is:
A. Sebum suppression. Although sebum helps moisturize the skin, excess sebum production can contribute to acne formation. Benzoyl peroxide helps to decrease sebum production, leading to a reduction in acne breakouts.
B. Antimicrobial. Benzoyl peroxide has antibacterial properties and can kill the bacteria Propionibacterium acnes that contribute to acne development.
C. A keratolytic effect. Benzoyl peroxide helps to exfoliate the skin and remove dead skin cells, preventing clogged pores and reducing the formation of comedones (blackheads and whiteheads).