what is the best shampoo to thicken hair?
['Rahua Voluminous Shampoo. ... ', 'Julien Farel Haircare Hydrate Shampoo. ... ', 'Alterna Bamboo Volume Abundant Volume Shampoo. ... ', "Nick Chavez Plump 'N Thick Thickening Shampoo. ... ", 'Briogeo Blossom & Bloom Ginseng Biotin Volumizing Shampoo.']