Platinum, pure, rare, eternal, and one of the world's most precious metals, gives its inspiration to La Prairie's Platinum Collection. The scientists at La Prairie have found a way to harness the powers of Platinum to provide age-defying benefits to the skin. Cellular Serum Platinum Rare contains colloidal Platinum, which helps maintain the skin's electrical balance in order to preserve natural beauty and youthful appearance. Electrical balance also helps restore the skin's natural moisture barrierto provide enhanced hydration and protection. In addition, the serum is enriched with a skin brightening complex, firming agents, and potent anti-oxidants to brighten, tighten and transform skin to a remarkably ageless state. Cellular Serum Platinum Rare also contains La Prairie's exclusive Cellular Complex, which helps stimulate the skin's natural repair process, moisturizing and energizing with nutrients that encourage optimal functioning. 1 oz.