Time Inc Digital Studio
Master Silicone
Few ingredients add more shine than this glossy polymer, but it can weigh hair down if it's not used correctly, says cosmetics chemist Ni'Kita Wilson. For thin hair, pick a spray formula, like John Frieda Frizz-Ease 100% Shine mist ($6; at Rite Aid), and gently mist onto damp hair from mid-shaft down. For thick hair, work a pea-size drop between palms and distribute evenly through damp hair. If your hair is coarse or kinky, add a bit more product to ends once hair is dry, or try a heavier natural oil.