This is the first time Perry has developed product, playing a core part in the testing and refinement process.

Warm tones versus cool, highlights versus lowlights, or temporary versus permanent—the most crucial part of your first salon appointment comes down to picking the right hair color and how long ...

Finding a hair dye that delivers rich, natural-looking coverage without leaving your strands dry, damaged, or one-dimensional. With so many formulas on the market—permanent, demi-permanent ...

‘No Bleach London’ is a range of seven box dyes that create permanent colour changes with absolutely no bleach whatsoever, thus minimising the damage to your hair without forgoing vibrancy and ...

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 ...

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 ...

Wondering how to dye your hair at home? We've spoken to hair colour experts to find out everything you need to know before colouring your own hair.