What It Is:A refill of the generous and rich serum that revitalizes and enriches skin for an unprecedented glow.What It Does:Inspired by the beauty of the golden hour in the Swiss alps, La Prairie seeks to recreate its unique radiance and impart it to the skin as if lit from within. This rich, generous serum revitalizes and enriches skin with the radiance of pure gold. Infused with La Prairie's proprietary Pure Gold Diffusion System and the Exclusive Cellular Complex, it is designed to smooth the skin and refine its texture, revitalize its appearance and help even skin tone.- Enhances skin's radiance instantly and over time.- Provides essential nutrients restore devitalized skin.- Smooths and evens skin's texture and tone.- Helps to restructure the skin and increase skin volume.- Intensely hydrates.- Skin is revitalized, replenished, enriched, diffusing the grace of the golden hour.La Prairie debuts its first refillable vessels with the Pure Gold Collection. The brushed metal casing and cap of the Pure Gold Radiance Concentrate are designed to be kept indefinitely. Only the delicate glass vials containing the formulas, once empty, are meant to be removed, recycled and replaced.