Brimming with roucou oil – a potent Amazonian extract derived from the fruit of the achiote, which is 100 times richer in beta-carotene that carrots –Davines’s OI Oil helps to stimulate melanin synthesis and in turn, maintain your hair’s natural pigment. Featherweight and non-greasy, this elixir also exhibits a powerful smoothing, detangling and frizz-fighting action, to keep even wild hair types under control.