Volumizing Hair Tips for Adding Volume to Thin, Fine Hair

"Ingredients like vitamins B5, C, E, and sunflower, almond, soybean, and coconut oils all help add volume and body, but you also want your shampoo to clean the residue that weighs down hair," notes Francesca Fusco, M.D., a dermatologist who specializes in scalp care. Try Clear Scalp and Hair Volumizing Root Boost Shampoo and Conditioner ($4 each, target.com).