Nourishing Oil-Serum. The DIOR treatment with the highest concentration of Rose Souveraine Absolute to contribute to an intense nourishing action on the skin. Composed of 100% natural oils, this serum-oil perfectly respects the most delicate skin with which it blends immediately. Every day or as an intensive care for a month, L'Huile Souveraine restores infinite elasticity to the skin, a "full" appearance and a radiant glow. The skin is immediately soothed and sublimated. It is soft and beautifully satin.