Men Expert ONE-TWIST ammonia-free hair dye is available in a variety of shades, offering an innovative ONE-TWIST technology for easy-mix & mess-free application, natural-looking results, and naturally blended greys up to 6 weeks. Developed for men’s hair, this semi-permanent colour is quick and simple to apply in just 5 minutes, blending with your original colour for a natural finish. Our precise applicator ensures an even coverage without mess. 96% of men* reported softer, healthier looking hair after use!