Question: what is the best product to straighten hair?
Answer: #10. ... , TRESemmé Keratin Smooth Keratin Infusing Smoothing Serum. ... , It's a 10 Miracle Leave-In Plus Keratin. ... , IGK Good Behavior Spirulina Protein Smoothing Spray. ... , Suave Professionals Anti-Frizz Cream. ... , John Frieda Frizz Ease 3 Day Straight Semi-Permanent Styling Spray.