Peppermint has been one of the most popular herbs know since antiquity for its medicinal value and distinct aroma. Due to its healthy combination of vitamins, minerals and antioxidants, peppermint promotes hair health. It helps prevent dandruff and is great for soothing the scalp and promoting hair growth. The antibacterial properties of this herb are effective in treating head lice infestation. The compounds in the leaves are said to have therapeutic and medicinal properties. Peppermint oil is applied to get relieved from headache.