Oligo Calura developers have been formulated to ensure perfect stability, ideal consistency, and reliable, predictable results. They should be used as follows:
10 Volume (3%) – Tone
20 Volume (6%) – Tone-on-tone deposit or darker, lift 1 to 2 levels, grey coverage
30 Volume (9%) – Lift 3 levels, grey coverage for resistant grey hair
40 Volume (12%) – Lift 4 to 5 levels
