Keratin is a fibrous protein naturally found ... thinning hair, receding hair, curly, straight, short, long, dry, wavy, frizzly, or chemically-treated hair and 1A to 4C hair types.
From the infamous Brazilian blow-dry to the frizz-fighting KeraStraight, keep reading for everything you’ve ever wanted to know about keratin treatments… If you’ve ever moaned about your ...