15 ml/ 0.5fl oz. 100% Natural Pure Grade. WILL’s Tea Tree essential oil is from Australia and is known for its therapeutic and healing properties. A narrow-leaved small tree that grows in swampy areas, it expresses a warm, camphoraceous, medicinal scent. Tea Tree Essential Oil is cleansing and ideal for treating fungal infections, improving acne and oily skin, and preventing colds and flu from developing. It also vigorates the mind and body.