Halo's Growth Tonic: made of Rice Brane oil, Biotin and other essential oils.Rice bran oil is rich in omega 3 and 6 fatty acids which help nourish the hair. And will also restore and maintaine healthy hair follices(A hair follicle is a part of the skin, which grows a hair by packing old cells together regulates hair growth). .biotin, also known as Vitamin H, helps increase new hair growth of hair, while strengthen hair strands.Halo"s Growth tonic was created to target stuburn hair growth, stimulate and nourish hair to generate growth power. for a thicker and heathier looking mane.