Natural Health Harmony PURE Onion Oil Vegan (250?ml / 8.4?fl?oz) is a 100% natural, vegan hair and scalp oil made primarily from pure onion extract (often with added peppermint or essential oil) that?s rich in vitamins, minerals and sulfur-containing compounds traditionally used to nourish hair roots, support stronger hair, and promote a healthier scalp. It?s typically light, non-greasy, and used as a pre-shampoo treatment or scalp massaging oil to help improve scalp circulation, reduce dandruff, strengthen hair, and support hair growth and texture.