100% gray covering
Mixing ratio 1:1 (1 part color with 1 part OYA lotion).
Use with OYA lotion 10 vol. (3%) for gray coverage, tone-on-tone and coloring darker.
Use with OYA lotion 20 vol. (6%) for up to 2 levels of lift.
Use with OYA lotion 30 vol. (9%) for 2 to 3 levels of lift.
Use with OYA lotion 40 vol. (12%) for 3 or more levels of lift.
