For the study several herbs used by medical herbalists in the treatment of acne were tested and these included tinctures of marigold (Calendula officinalis) and myrrh (Commiphora mol mol). However, thyme was found to be the most effective at combating the P.acnes bacteria
This is good news for acne sufferers who sometimes find that preparations containing benzoyl peroxide cause side effects such as a burning sensation on the skin and irritation, which is not helpful for a skin that is already uncomfortable and troublesome.
Thyme is however only one of the herbs that herbalists have at their disposal to help with a number of different skin problems as well as acne, which are used both externally and internally.