The first time I dyed my hair, I used hydrogen peroxide. I was an ignorant college student and I just walked into a supermarket, bought the liquid, and went home and applied it. The result was dry ...

hydrogen peroxide and p-phenylenediamine. Ammonia, an alkaline chemical, raises the pH level of the hair. This then pulls apart layers of hair's proteins, so that the dye can access the hair shaft ...

The reveal of a new hair color can make you feel fresh and look ... A known bleaching agent, you can rely on hydrogen ...