Its infinitely silky texture penetrates down to the heart of the skin to diffuse the very essence of Yquem vine sap for ultimate complete age-defying action. The skin regains vitality. It is firmer, smoother & more luminous. The Dior tip: each morning, release a small drop of Le Sérum onto the fingertip. Breathe in the delicate fragrance & then massage the drop onto your forehead with a sweeping movement. Then glide over your entire face with a smoothing stroke to fully benefit from the powers of L' Or de Vie. Please note this is the refill version.