Developer and Hair Color Brand
Q: Is it ok to use a different brand of developer than the brand of the actual hair color?A: Yes. As long as the developer is intended for the type of hair color you are using (demi-permanent & semi-permanent versus permanent color) you can interchange brands if you need to do so.
The reason for the exclusivity between semi/demi-permanent color and permanent color is that the non-permanent colors use a milder developer formula strictly to provide a deposit of color only.
When a non-permanent color is used with a developer that is too strong, one of the negative outcomes is that the color mix can lighten the starting color and the color that is deposited doesn't give the expected result. The resulting color can fade, quickly revealing that lightening and leave the hair looking unpleasant.
©Hairfinder.com
See also:
What does the developer do?
What is the ratio of color to cream developer?
Is there a difference between hair developer and hair activator?
Peroxide formula