These vials bring added radiance to the skin, increasing its hydration and improving its texture while helping to prevent premature ageing thanks to their antioxidant and anti-free radical properties. They can be used as a one-off ‘flash’ treatment or as a booster to your regular skincare regime. Vitamin C plays an important role in the natural formation of collagen in the skin. Meanwhile, proteoglycans act by maintaining hydration deep-down, helping to repair dehydrated, debilitated and dull skin.