Revlon Luxurious Colorsilk Buttercream Hair Color Get the ultimate in rich, shiny, haircoddling color. ColorSilk Buttercream nourishes hair and covers grays for eight full weeks.This revolutionary formula is infused with mango, shea and coconut butters, leaving hair naturally shiny and soft. The permanent hair colour formula is great for all hair types and extraclingy to grays for complete coverage.Use the included nourishing mask with argan, avocado, sunflower and olive oils to give hair an extra boost of shine just when you need it, 2 weeks after you colour.