L'Oréal Professionnel's Serioxyl Advanced Denser Hair Shampoo is a lightweight gel that gently purifies and helps to give the feeling of renewed density, leaving hair densified and radiant. This shampoo is enriched with Magnesium salt, which helps to purify the scalp from buildup and promote healthy hair growth. Its lightweight formula gently cleanses the hair, leaving it feeling refreshed and revitalized. With regular use, this shampoo can help to improve the density of your hair, making it look fuller and more voluminous. This shampoo is made with hair pros and approved by dermatologists.