Black and Blonde Hair Color Renewal Posted: February 25, 2025 | Last updated: February 25, 2025 Revitalize your black and blond hair with a stunning color renewal that brings vibrancy and depth to ...

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 ...