Question: what is the best shampoo to keep hair straight?
Answer: Aveda Smooth Infusion Shampoo. ...  TRESemmé Keratin Smooth Shampoo. ...  R+Co Bel Air Smoothing Shampoo. ...  Garnier Fructis Sleek & Shine Brazilian Smooth Shampoo. ...  Pureology Smooth Perfection Shampoo. ...  Luseta Keratin Smooth Shampoo & Conditioner Set.