- Semi Permanent Hair Color - Ammonia Free - 100% Vegan & Cruelty-Free

Slate is a metallic blue hair dye which is packed full of quartz. This shade will create steel blue hair which will shine under light. For the best results, we recommend lightening your hair to level 9 or 10 (blonde) before use.

Do not mix with peroxide. To ensure the colour is as expected, test on a small swatch before application. For best results apply to pre-lightened / bleached hair. Directions: After shampooing, towel dry hair and apply Crazy Color® evenly over hair (wear gloves). Leave for 15-30 minutes, then rinse thoroughly.

Place your orders early to ensure they arrive in time for the holidays!

To guarantee delivery before Christmas, please select the appropriate service: 

18th December: Royal Mail Tracked 48®
19th December: Special Delivery Guaranteed or DPD Next Day

👉 Christmas Opening Hours & Delivery Information

UK and International
All orders over £199 will qualify for Free Next Working Day delivery.

For more information on shipping please visit our Delivery Information page.