Buy guide hair color for gray hair
Permanent Hair Color Gray Hair:
For the best coverage of gray hair, we recommend using natural colors, the pure colors without dots or numbers behind them.
A permanent hair color is used to open the hair shaft, the higher the strength of h2o2, the more the hair is opened. It is the combination of which hair color and strength of h2o2 determines the result. If you choose a very light shade of color, but a weak strength of h2o2, the color will not be lighter than h2o2 can lighten the hair. Our h2o2 contains care ingredients and is therefore a little weaker in strength than others. It is often wise to go up a notch if you want to cover gray or want a lighter result.
You should always use a cooler shade at the base of the scalp as this hair always attracts more warm pigments. Lengths and ends always attract more cold pigments. The drier/porous the hair is, the more color it attracts. If you want an even color throughout the hair, you should use a darker and cooler color at the base of the scalp and a lighter and warmer color in the lengths. For example, use no. 9 + no. 9.3 at the base of the scalp and only no. 9.3 in the lengths for a natural result.
So here you can combine based on whatever result you want.