For deep nourishment and treatment of dry hair, try to Yves Rocher Nutrition 2-In-1 Cream Mask. This silicone free cream based hair mask is enriched with essential fatty acids of avocado oil that offer two vitals benefits to hair. It provides a rich source of nutrients to the hair fibers and then locks them to prevent hair from losing moisture. Featuring a dual action technology, it helps rebalance and retain the original lipid level of hair. This product can be used in two ways: before shampooing on dry hair or after shampooing on wet hair.