Number 30 Hair Color. Duplicate numbers before the slash 33 02 signify that the hair color is a very intense color with good ability to cover grey hair. It s not a natural depth level.
4 dark brown. Level is how much lift the color has. Explore our wide range of rich vibrant captivating colors.
The letter refers to the tone and base pigment of the color.
It s designed for use when you want to add a color tone or tint to the hair of the same lightness level. A single number without the slash 1 means that color is neutral. The first number is the base colour and indicates how light or dark the colour is. The 10 volume developer is a standard oxidizing level for permanent no lift hair color.