Question: what is the best shampoo to straighten hair?
Answer: Living Proof Perfect Day Shampoo. ...  It's a 10 Miracle Shampoo Plus Keratin. ...  Redken Frizz Dismiss Sulfate-Free Shampoo. ...  Tresemmé Keratin Smooth Shampoo. ...  OGX Ever Straight Brazilian Keratin Therapy Shampoo. ...  AVEDA Smooth Infusion Shampoo. ...  Ouai SMOOTH Shampoo. ...  Davines Love Smoothing Shampoo.