Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...

sometimes dyeing your hair at home is your best option for changing up your hair color. If you're adamant on skipping the salon, you don’t need to sacrifice achieving salon-quality results.

But the days of having to reach for the dye to banish your grey hairs could ... luteolin's anti-greying effect is down to how it affects the hair cycle, the researchers were surprised to find ...

If you frequently color your hair, you're likely familiar with that time in your dye cycle when pesky grays start to pop out or your roots look unintentionally ombré. Sometimes, getting to the ...

but it never hurts to have home remedies—including the best hair dyes for gray hair—on hand. When gray hairs start creeping up unexpectedly and your colorist is booked solid for weeks ...

A chemical compound used in many permanent hair dyes has been named Allergen of the Year for 2025 by the American Contact Dermatitis Society (ACDS). Toluene-2,5-diamine sulfate (PTDS) is an ...