Mix a small amount of the colour cream with the developer and dabb a small amount of the dye solution on your inner elbow. Leave it to dry, cover it with a bandage and keep it dry for at least 48 hours but preferably 72 hours. Check it once in a while.

When you are very sensitive for hair colour, you can apply the solution on the upside of your hand or between the fingers.

If the colour cream causes no irritation or redness in 72 hours you can safely dye your hair with this hair colour. If the colour does cause irritation or redness, we recommend you to wash it off and not dye your hair. In that case you can visit a dermatologist to find out to which ingredient you are allergic to.

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