What it is: A skin-brightening serum to help improve the five dimensions of skin quality: tone, evenness, texture, translucency and imperfections.What it does: The brightening serum is infused with edelweiss extract from the Dior garden to help diminish the look of dark spots on skin and ethyl-ascorbic acid, a vitamin C derivative, for brightening action. How to use: Cleanse your skin with Diorsnow Essence of Light Purifying Brightening Foam (sold separately). Prepare your skin to receive the rest of the skin care with Diorsnow Essence of Light Micro-Infused Lotion. Activate the luminosity at the heart of your skin with Diorsnow Essence of Light Serum. Hydrate and even out your skin with Diorsnow Essence of Light Lock & Reflect Cream (sold separately). Made in France