serumtologie® C serum º22 -Max Anti Aging 22% Vitamin C serum – Moisturizer – Anti-Wrinkle – 5% Hyaluronic Acid, 1 % Vitamin E, 1% Ferulic Acid Combine to Form the Most POTENT Daily Age Defying Treatment Available. Highest Concentration of Clinically Proven Active Ingredients. Professional 22% Vitamin C Formula. Contains Max Dose of Free Radical Scavenging Activity to Help Combat Sun Damage, Reduce Lines + Wrinkles and Boost Collagen For Beautiful Glowing Skin (1 oz.)