Question: what is the best shampoo for thin brittle hair?
Answer: Kérastase Resistance Bain Volumifique Thickening Shampoo. ...  Aveda Pure Abundance Volumising Shampoo. ...  Kiehl's Rice and Wheat Volumising Shampoo. ...  Bumble and Bumble Thickening Shampoo. ...  Percy & Reed Bountifully Bouncy Volumising Shampoo. ...  Philip Kingsley Body Building Shampoo.