Nitro Canada Collagen Hair Dye 7.21 Dense Gray

Hair dye collagen gray dense 7.21 from Nitro Canada, product effectiveness: gives you vibrant shiny hair. Covers white or gray hair, and gives you a natural and beautiful color. Enhances your elegance and attractiveness. Provides your hair with intensive moisture and protection for colored hair due to its composition of nourishing natural oils. A formula enhanced with collagen that penetrates the hair during the coloring process to rebuild damaged hair from the inside out. Contains the least possible amount of ammonia. Gives you a lasting look that does not fade. Does not cause any unpleasant smell. How to use: - Mix a quantity of hair bleaching cream in a non-metallic bowl with double the amount of oxidizing cream and collagen serum. - Then mix well. - Divide the hair into four sections. Apply the product to the hair and keep it 1 cm away from the roots. - Leave the preparation on the hair for 30 to 40 minutes (depending on the desired bleaching level). - Then rinse thoroughly with water.