Spearmint has the ability to reduce testosterone levels, and thereby reduce sebum production and hormonal acne.Hormonal acne is caused by androgens and these are what causes higher sebum production levels - these higher levels leads to a higher chance of blockage, which lead to breakouts. Spearmint is proven to help reduce sebum production and the development of hormonal acne.
A study in 2010 demonstrated that spearmint has anti-androgenic properties, which means it reduces in testosterone levels - and thereby decrease sebum production and the development of hormonal acne. Studies performed in women have shown testosterone levels were significantly reduced over the 30-day period after drinking spearmint tea twice a day. These male-associated hormones are a driving force in some women’s acne, especially adult acne which appears along the jawline in women.