Sensitivity Test

The Permanent Haircolour Gel offers high tolerability thanks to the test on sensitive skin.
However, it is always advisable to perform a sensitivity test 48 hours before each use of the product, even if a hair colouring product has been used before.

Get a plaster and a cotton swab. Soak the plaster with a small amount of colourant and developer. You can use the two ends of the cotton swab to collect the two liquids. Do not use metallic objects. Seal the bottles tightly.
Apply the plaster with a small amount of mixture to the forearm area or behind the ear and do not remove it. After 45 minutes, rinse and pat the area dry with a clean tissue. If you notice itching, redness, or swelling above and around the test area within the next 48 hours, rinse and do not use the product. Consult a doctor if necessary. This test is an important precautionary measure that has proven reliable when strictly following the provided instructions. However, the sensitivity test does not guarantee that allergic reactions will not occur in the future. If in doubt or if you have questions, consult a doctor.

For more information, check the FAQ and read the warnings inside the Permanent Haircolour Gel package.