OYA Permanent Color 1-0(N) (Natural Black) 3.17oz

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.

OY 5001