AVST (Advanced Vitamin Skin Therapy) is the successor to the Original Range. AVST will progress you into the next generation of results driven skin care enabling you to obtain even greater benefits at the same time as utilising the most scientifically advanced skin care available. What are the key ingredients in AVST? In addition to the mainstay active ingredients (that you are already familiar with) Vitamin A, C, E and Beta Carotene. AVST also contains powerful and effective antioxidants and flavonoids ensuring a potent mix of protective, restorative and healing nutrients for the skin. Antioxidants are compounds that protect cells against the damaging effects of reactive oxygen species (ROS). An imbalance between antioxidants and ROS results in oxidative stress leading to cellular damage. Each antioxidant nutrient works at different molecular levels so it is important to have a brigade of as many different antioxidants as possible ensuring a comprehensive range of protection.