Hair Lightening Guide
Hair lightening (bleaching) removes natural melanin pigment to achieve lighter shades. Standard mixing ratio for powder lightener is 1:2 (bleach to developer). Developer volume determines lift power: 20 vol for 1-2 levels, 30 vol for 2-3, and 40 vol for 3-4 levels. Never exceed 45 minutes processing time. Each hair level reveals underlying pigments (red, orange, yellow, pale yellow) that need toning for a clean result. Always do a strand test first.