Mix hair color and developer volumes and read the lift strength.
The color and developer are simply added, and the reference lift comes from the peroxide volume chosen. Matching developer strength to the hair condition and desired lift prevents damage and uneven color.
Hair Color Developer
Mixture = color + developer; lift depends on developer volume
Mixture = color + developer; lift depends on developer volume The color and developer are simply added, and the reference lift comes from the peroxide volume chosen.
Matching developer strength to the hair condition and desired lift prevents damage and uneven color.
This calculator takes 3 inputs: Color amount, Developer amount, Developer volume. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.