B VitaminsThese include B3, B5, B6, and B12. B vitamins are known for promoting blood circulation and melanin production in the scalp and preventing graying, fading, and hair loss. B vitamins are found in a number of foods including brewer’s yeast, meat, fish, egg yolks, whole grain, and vegetables.Vitamin AKnown to promote healthy sebum production in the scalp. This antioxidant is found in fish, dairy, eggs, meat, and vegetables.Vitamin CThis antioxidant also promotes overall hair health and is found in a variety of fruits and veggies including green peppers, potatoes, strawberries, kiwi and pineapple.Vitamin EThis antioxidant promotes blood circulation in the scalp, similarly to B vitamins and is mostly found in veggie oils, beans, nuts and seeds.BiotinBiotin promotes a healthy production of keratin, which strengthens hair and prevents shedding and graying. This vitamin can be found in eggs, grains, rice and dairy. Photo credithttp://hennablogspot.com/wp-content/uploads/2012/02/Natural-Healthy-Long-Curly-Hair.jpg