Here are the best shampoos for thinning hair in 2022: BIOLAGE Advanced Full Density Thickening Shampoo. ... Revitalash Cosmetics Thickening Shampoo. ... PURA D'OR Original Gold Label Anti-Thinning Biotin Shampoo. ... Bumble and Bumble Thickening Volume Shampoo. ... Paul Mitchell Tea Tree Scalp Care Anti-Thinning Shampoo. More items... 26 May 2022