The Bleach London Super Cool Colour is a gentle, semi-permanent hair dye that instantly illuminates hair with a wash of eye-catching pigment. Suitable for all hair types, this conditioner-based formula lasts between 3-30 washes and helps to nourish strands while you colour. Explore a vibrant array of shades, from fiery amber to dramatic ultraviolet and bubblegum pink to icy white. This rich, luscious mask transforms bleached and toned tresses in just 30 minutes, revealing bold, chic shades. The colour and fade will vary depending on your hair's tone and porosity. This product is vegan and cruelty-free. For best results, use with the corresponding toning shampoo and conditioner to maintain vibrancy. One bottle is suitable for short hair or colouring freshly bleached and toned roots; shoulder-length hair will need 2 bottles, and long hair will need 3-4 bottles. We recommend a strand test before use to check the colour your hair will go and a skin sensitivity test 48 hours before application.