Can 20 Volume Developer Lighten Hair? 19 Essential Insights
Yes, 20 volume developer can lighten hair by 1–2 levels. It contains 6% hydrogen peroxide, which opens the hair cuticle and lifts natural pigment. It works best on virgin hair and is commonly used with permanent hair color, highlights, and gray coverage. Dark hair may require bleach for significant lightening. If you’re thinking about lightening…
