About Colour B4
Colour B4 is a leading at-home hair colour remover brand owned by Revolution Beauty, offering an effective solution for removing unwanted hair dye without the harsh chemicals found in traditional colour correction products. The ammonia and bleach-free formula provides a safer approach to reversing colour mistakes or preparing hair for a fresh start. The range includes two strength options to address different colour removal needs. The Extra Strength formula is designed for standard colour removal, while the Ultimate formula tackles more challenging situations—hair with multiple colour applications that has become dark and flat, or stubborn dark brown, red, and black shades that need intensive removal. Colour B4 works by shrinking the artificial colour molecules in hair, allowing them to be washed away while maintaining the hair's structural integrity. Unlike bleaching, this process doesn't lift natural pigment, meaning hair returns closer to its original base colour rather than becoming damaged blonde. Users can re-colour immediately after treatment, though allowing 1-3 days rest is recommended. Widely available across UK supermarkets and pharmacies including Boots, Tesco, Sainsbury's, and Superdrug, Colour B4 has become a trusted choice for at-home colour correction. The accessible pricing and proven effectiveness make it popular for anyone experiencing colour regret or needing to start fresh with their hair journey.
