Medik8 C-Tetra Eye is a Lipid Vitamin C Antioxidant Serum. Our eyes are often the first area to show signs of ageing and loss of vitality. Harness the anti-ageing and brightening power of our original C-Tetra® facial serum in an ultra-gentle, yet effective treatment designed for the delicate eye area. Enriched with 100% stable vitamin C and vitamin E to prevent free radical damage and minimise irritation. These 2 antioxidants work together to boost their overall power, while recharging each other to ensure that every last drop of the formula is a powerful as the first. Eyes are left revitalised and youthful-looking. Your skin is packed full of natural antioxidants that defend against free radicals from the environment. When these environmental free radicals outweigh your antioxidants, they can no longer protect the skin. Free radicals latch onto the defenceless skin cells, causing irreparable damage, which ultimately leads to premature ageing. C-Tetra Eye contains tetrahexyldecyl ascorbate, a super-stable form of vitamin C that boosts the antioxidant defence levels around the delicate eye area. Ever the multi-tasker, it also stimulates collagen production to reduce the appearance of fine lines, wrinkles and crow’s feet, leaving the under-eyes youthful and awakened. As a lipid-soluble form of vitamin C, it is able to penetrate the skin’s defensive lipid barrier with ease, delivering benefits deep within the skin. Vitamin C and vitamin E work synergistically as ‘network antioxidants’, boosting the serum’s overall antioxidant effect to keep skin protected throughout the day.