HAIR COLOURANTS CAN CAUSE AN ALLERGIC REACTION WHICH IN CERTAIN CASES MAY BE SEVERE. THEREFORE, TO HELP REDUCE THE RISK OF AN ALLERGIC REACTION, IT IS ESSENTIAL TO FOLLOW THE PRECAUTIONS BELOW:
If you have had a temporary black henna tattoo at any point in your life, it may increase your risk of an allergic reaction
You have a rash on your face or a sensitive, irritated and damaged scalp.
You have ever experienced any reaction after colouring your hair.
You have experienced a reaction to a Hair Allergy Test in the past
To carry out the Allergy Alert Test, always follow the instructions supplied with your hair colourant
Behind the ear and using a cotton bud, apply a small quantity of unmixed colourant product sufficient to cover an area of 1-2cm² (e.g. the size of a small coin).
Re-apply two or three times allowing it to dry between each application. Carefully reseal the colourant container and keep it for the application 48 hours later.
Leave for 48 hours without washing, covering or touching.
If during this period you notice any abnormal reactions, such as itching, redness or swelling in or around the test area, DO NOT APPLY THE PRODUCT.