33.8 oz

Use OYA lotion 40 volume (12%) 3 or more levels of lift.
Mixing ratio 1:1 (1 part color with 1 part OYA lotion).

4 dedicated lotions for use with OYA Permanent Color:

• 10 volume (3%) for all gray coverage and deposit only.
• 20 volume (6%) up to 2 levels of lift.
• 30 volume (9%) 2 to 3 levels of lift.
• 40 volume (12%) 3 or more levels of lift.

1 dedicated lotion for use with the OYA Demi Permanent Color:

• 5 volume (1.5%) deposit only.