Like all hair colors, brunettes can experience fading, brassiness, and an overall lack of vibrancy. Fortunately, using a blue ...

The National Center for Toxicological Research, part of the FDA, highlighted that 4-aminobiphenyl, an aromatic amine known as 4-ABP, appeared in eight out of 11 tested U.S. commercial hair dye ...

The National Center for Toxicological Research, part of the FDA, highlighted that 4-aminobiphenyl, an aromatic amine known as 4-ABP, appeared in eight out of 11 tested U.S. commercial hair dye ...

With over 260 comments on the post, many TikTok users highlighted the importance of doing a patch test before using any hair dye. One user wrote: "It's called a patch test. Says so on the box." ...