Enhanced with dual technology, Orchidée Impériale Brightening The Radiance Serum is an exceptional light creator. Cell Respiration Technology helps to enhance the appearance of the skin so it becomes a perfect light vector. Orchid Noble Light Technology combines an extract of the precious orchid Dendrobium nobile with a brightening peptide, acting holistically on sources of skin dullness and helping to recreate exceptional light.Apply the Radiance Concentrate morning and evening after the Essence-in-Lotion and before the Orchidée Impériale Light Cream. Directions For Use:This massage technique has been developed by experts from the Guerlain institute: 1. Working outwards from the centre, apply to face and neck with circular movements. 2. Pinch the skin and give the wrists a quarter turn, repeating over the entire face. 3. Place your hands in a V shape on the lower part of the face and, moving upwards, apply pressure with a wave-like motion.4. Tap with fingertips all over the face.