Nitro Canada Collagen Hair Dye 7.92 Purple

Natro Canada Collagen Hair Dye 7.92 Purple If you suffer from dull hair or split ends or are tired of covering gray hair, the collagen serum nourishes the hair and makes it softer. Effective formula: Contains a very small amount of ammonia enriched with collagen that penetrates into the hair layers during the coloring process, to treat damaged hair from the inside out. Collagen serum works to nourish the hair and make it softer. Usage method Color pulling system: Mix a quantity of hair bleaching cream in a non-metallic bowl with double the amount of oxidizing cream with 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 at all times. Leave the product on the hair for 30 to 40 minutes (depending on the desired bleaching level), then rinse thoroughly with water.