Keratin treatments are game-changers in the hair care arena, known for turning frizzy, untamed hair into sleek, shiny locks.

3. Let it Sit Depending on your hair type and the treatment used, it may need some time to sit before moving on. After the keratin treatment was applied, Roque put a plastic cap on my hair and ...

although preliminary experiments with insulin and wool keratin have indicated that some modification of the procedure may be necessary before it can be used with proteins.