what is the best shampoo for thin damaged hair?
['Best For Strengthening: Kérastase Densifique Bain Densité Shampoo. ... ', 'Best For Age-Related Thinning: Andalou Naturals Argan Stem Cell Age-Defying Shampoo. ... ', 'Best For Thinning Caused By Dandruff: Dove Dermacare Scalp Anti-Dandruff Shampoo. ... ', 'Best For Color-Treated Hair: Nioxin System 4.']