Oligo Hyaluronic Acid is a HA molecular fragment with a relative molecular mass of less than 10,000, which is developed and produced by the company’s own enzymes and unique enzyme digestion technology, also known as Hydrolyzed sodium hyaluronate.The product can penetrate the epidermis and dermis, and has biological activities such as deep hydration, scavenging free radicals, repairing damaged cells, improving cell activity, soothing sensitivity, anti-inflammatory, and regulating skin immune function.