these treatments nourish with keratin - a protein already in the hair. This not only fights frizz and increases the gloss, ...

A hair gloss treatment acts as a top coat to protect ... That means it shouldn’t replace your your deep conditioning and protein treatments that usually ensure your hair is healthy.

These innovative treatments, which can be done by a professional or from the comfort of your own bathroom, do more than just add shine (though they, of course, do that, too). "Hair gloss can be ...