Coconut milk is a great organic hair conditioner to provide with longer and thicker hair. can also use it as a leave in conditioner which gives added volume to your hair without making them greasy. Take a small amount of coconut milk on your palm and rub your hands together. Bend forward such that your hair is flowing towards the floor and rub the coconut milk on your hair from roots to ends including the underside of your hair at the nape of your neck.