Current estimates suggest that 50-80% of women and 10% of men 40 years of age and over in the United States and Europe use permanent hair dye products. The aromatic amine p-phenylenediamine (PPD) is ...

Dec. 16, 2025 — If you search for hair dye on social media, you’ll mostly see inspo photos of women with brightly colored locks. But you’ll also find clips warning you that dying your hair isn’t so ...

If you’re wondering how to dye your hair at home, then you’ve come to the right place. The first step in getting a professional-looking new shade without stepping into a salon is choosing the best ...