Khadi Pure Herbal Tulsi Hair Growth Oil makes hair natural black, long & healthy. It has the best of herbs recommended in Ayurveda to help prevent hair loss. Ingredients: Tulsi, Propylene, and Glycol Base. Applicare: Part your hair and apply oil all over the scalp. Massage the scalp gently with fingers in a circular motion so that the oil gradually gets absorbed into the scalp. Leave for an hour or more before washing. Keeping it overnight is also very beneficial.