What It Is:A hyaluronic acid serum that strengthens skin while defending against skin-aging stressors for youthful, radiant skin. These stressors include Uv exposure, pollution and extreme temperatures, which can cause dullness, dehydration, fine lines and other signs of aging.Key Ingredients:- Hyaluronic acid helps smooth and plump fine lines and is commonly used in skincare products to boost hydration and visibly refine skin's texture. The smallest molecular size of hyaluronic acid, 11kDa, penetrates to fortify skin within its deepest surface layers to help better retain moisture for improved resiliency, suppleness and bounce.- Adaptogenic Herbal Complex is a proprietary blend of adaptogens (red ginseng root, holy basil and schisandra berry) that are used in traditional Chinese, Korean and Ayurvedic medicine. These adaptogens work synergistically to defend skin from stressors while renewing and resurfacing skin's texture for a smooth, radiant appearance.Clinical Results:- Clinically demonstrated to boost radiance by 29% and improve resilience by 38% for glowing, healthy-looking skin.*- Clinically demonstrated to visibly reduce fine lines by 27%.*- Clinically demonstrated* to double skin's strength.***Based on a 4-week clinical study on 58 subjects tested in urban and polluted environments.**Based on Skin Strength Index = Composite average score of skin suppleness, plumpness and resiliency.