Essential step to achieve a vivid hair colour using Hello Bleach Primer, followed by your choice of Hello Bubble shade DIY permanent hair dye with an abundance of foam for easy application! Cream bubble texture with better adherence to the hair & expresses the ash colour more vividly. 60.6% improvement in hair roughness with the new Double Bonding Ampoule. 11 Free Formula Selectable according to preference various colours. Apply abundant bubble like shampoo easy self-hair dye. Pleasant floral fragrance. Free of ammonia! How to use Tips for Colouring hair. Take caution if you coated or dyed your hair in black or dark brown within the past six months since the desired result may not be achieved. Preparation Put on the gloves and the cape. Open Solution 2 and add all of Solution 1 and Solution 3 Double Bonding Ampoule. Close the cap tightly with the pump. Gently swirl the bottle about 20 times in circular motions until the content is mixed well. Colouring Hair Place the container on a flat surface and dispense 3-4 pumps by pressing the pump with the palm. Apply the foam just like shampoo on your hair evenly and leave it on for about 20-30 minutes, then rinse off with water thoroughly.