Specifications BrandSchwarzkopfTypePermanentIdeal ForUnisexFormCreamColorLight Blonde Copper Extra Description Usage of shades with LIP- to 50% whi te hair coverage: Use lgora 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,coloring l 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 correspondingbase 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. Usage of shades with LIP- to 100% whi te hair coverage: Use lgora Royal 3%,6%,9% or 12% Developer. Mixing ratio 1:1Apply 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,ltone 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.