Can 30 Volume Developer Lighten Hair By Itself?
No, 30 volume developer cannot lighten hair by itself. It needs to be mixed with hair bleach or hair color to lighten the hair. The developer activates and helps to open the hair cuticle, allowing the hair color or bleach to penetrate the hair shaft and lighten or change the color of the hair. Using just 30 volume developer on its own can cause damage to the hair without achieving the desired lightening effect.