Schwarzkopf Igora Royal Permanent Hair Color achieves unrivaled results with the unique combination of Color Cream and Color & Care Developer for brilliant color performance. Directions: Usage of shades with up to 100% white hair coverage: Use Igora Royal 3%, 6%, 9% or 12% Developer. Mixing ratio 1:1 Apply on dry hair. Allow to develop for 30 - 45 minutes. Rinse well. Shampoo and neutralize with BC Bonacure Color Save products. Use 3% Color & Care Developer when coloring darker. Use 6% Color & Care Developer for tone-on-tone, 1 tone lighter or coverage. Use 9% Color & Care Developer for coloring 1-2 tones lighter. Use 12% Color & Care Developer for coloring 2-3 tones lighter. For worn out color on previously tinted hair please proceed a dual application; the colorist method for previously colored hair. Additional heat is optional and reduces the developing time by a third. Usage of shades with up to 50% white hair coverage: Use 3%, 6%, 9% or 12% developer. Mixing ratio 1:1. Apply on dry hair. Allow to develop for 30 - 45 minutes. Rinse well. Shampoo and neutralize with BC Bonacure Color Save products. Use 3% Color & Care Developer when coloring darker. Use 6% Color & Care Developer for tone-on-tone, coloring 1 tone lighter or for coverage. Use 9% Color & Care Developer for coloring 1-2 tones lighter. Use 12% Color & Care Developer for coloring 2-3 tones lighter. If a shade with 50% coverage has been chosen as the target shade, for hair that is 2 or more levels lighter a corresponding base tone (-0, -4) needs to be added using a mixing ratio 2:1 (40g 4-99 + 20g 4-0). For worn out color on previously tinted hair, please proceed with a dual application; the colorist method for previously colored hair. Additional heat is optional and reduces the developing time by a third. Note: For Professional Use Only. Do Not Use Unless Professionally Applied by a Licensed Stylist