The bacterium known to play a major role in acne is Propionibacterium acnes. This bacterium is involved in skin infection, and contributes to formation of a wide number of blemishes on the skin, including white heads and cysts. After researchers tested the effects of different herbal tinctures, including thyme, marigold, and myrrh, on this bacterium, thyme was found to be the most successful of all three in killing the bacteria within a five-minute period. In fact, the thyme tincture was found to have even more antibacterial activity than benzoyl peroxide, a common ingredient in the majority of acne creams and washes.
Dr. Shana McQueen