Apply to entire head of hair and work into a lather.
According to the desired intensity, either rinse immediately or after leaving on (maximum 20 minutes).
This product may cause irritation.
A sensitivity test is recommended before use: apply a small amount of product behind the ear, leave on for 48 hours then rinse.
Do not use in case of an allergic reaction.
Keep out of the reach of children. Avoid all contact with eyes.