Smartbond The perfect complement to L’Oréal Professionnel Color and Lighteners, Smartbond is a new bond strengthening system that protects and strengthens the hair during technical service. Smartbond is a new in-salon and take home product that helps protect and strengthen your hair! The treatment will leave your hair feeling nourished & smooth to the touch, while leaving locks with a radiant shine. You can continue to help protect your hair after the in-salon service with weekly use of Smartbond Conditioner. How it works: Smartbond is added to your hair color or lightener and then after the color service, the pre-shampoo is applied at the sink. You’ll also receive a take home conditioner to continue to help protect your hair after the in-salon Smartbond service. Use once a week in place of your regular conditioner.