Triple Level Hyaluronic Serum moisturizing contains high, low and, most importantly, ultra-low molecular weight Hyaluronic Acid - all in one serum. Ultra-Low Molecular Weight Hyaluronic Acid (2-10kDa) Low Molecular Weight Hyaluronic Acid (20-70kDa) High Molecular Weight Hyaluronic Acid (1500-1800kDa) Natural Science: Natural skincare guided by science. Formulation shaped by 35 years of research and development. Performance proven in clinical and laboratory trials. Clinically approved for sensitive skin. Nickel tested. Ethical Standards: Accredited for sustainable excellence by Positive Luxury. Ingredients grown on Irene Forte's organic farm. Certified Vegan ingredients. No mineral oils. Eco-friendly packaging. 0.50 oz / 15 ml Final Sale - No Returns