L'Oréal Professionnel Serie Expert Chroma Crѐme
Wash your hair with a regular shampoo to remove any residue. You can use the Metal Detox shampoo.
Put on rubber gloves to protect your hands. Apply an amount of product you normally do with your regular shampoo. Apply the product evenly to wet hair from the roots to the tips. Emulsify until you create a rich blue lather. While the product’s working, brush through your hair to ensure an even coating.
Leave the purple shampoo on for 2 to 5 minutes. Leave the blue or green shampoo on for 5 to 15 minutes.
Rinse off thoroughly until you remove all the pigment.