Abigail Eisenstadt discovered that benzoyl peroxide is able to squalene's effect on immune cells that are attacking acne bacteria. A relationship between the immune system and acne was observed by RNA sequencing and Modlin and colleagues macrophages, or white blood cells, which rush to sites of infection to engulf intruders. Macrophages use oxidation to kill bacteria on the skin. Since the benzoyl peroxide is an oxidizing chemical, it can be harnessed to kill acne-causing bacteria when natural macrophages cannot. Finally the a renounced dermatologist recognizes benzoyl peroxide's ability to reduce redness and combat acne.
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