15 ml/ 0.5fl oz. 100% Natural Pure Grade. WILL’s Peppermint essential from India is pure and natural, and contains no heavy metals. It is one of few mint varieties that are used in therapy. It has a penetrating herbaceous top note, with a sweet and delicious minty aroma. Peppermint Essential Oil is cooling and helps reduce symptoms of acne, cough, cramps, flatulence, headache, mental fatigue, nausea, and nervous stress.