Massage your scalp gently.
For maximum effect, use with other hair products from the same line.. Enjoy having thick and beautiful hair again.L’Oréal Professionnel Serie Expert Serioxyl, 90 ml, Hair Growth Activators unisex, The hair treatmentL’Oréal Professionnel Serie Expert effectively stimulates growth of new hair, strengthens it and also regulates thinning of your existing hair.