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How to straighten hair with a roller brush 
Towel dry hair to remove the majority of moisture. 
Hair will need to be damp to straighten. 
Comb hair to remove tangles and excess moisture.

OPTIONS:
- Gently do this with a fine toothed comb or in the shower. You can also use hot rollers.
- Hair should remain damp and tangle free. Apply straightening product or serum to hair.
- Brush hair until all of the tangles are gone. Comb hair again as needed and then towel dry as needed.
- Straighten hair at the crown to be straight. Rollers become a hair tool and so do curlers and hair clips.
Hair should remain damp and tangle free. Apply straightening product or serum to hair.