What system is used internationally to define the lift/deposit ratio in a bottle of hair color?

The Level System is the accepted standard internationally to define the lift/deposit ratio in hair color formulations. This system categorizes hair color into various levels, typically ranging from 1 to 10, with 1 being the darkest and 10 the lightest. Each level indicates the degree of lightening that occurs when the hair color is applied.

In terms of lift and deposit, a higher level indicates more lifting capability, while the color deposit is determined by the specific shade chosen within that level. This helps hair colorists communicate effectively about desired results and facilitates consistency in hair coloring processes across different brands and regions. Utilizing the Level System enables professionals to understand how much lift and pigment will be deposited on the hair, which is vital for achieving the desired end color while maintaining hair health.