After five years of research and testing, the formula was perfected to provide a high-concentration, ultra-stable form of the vitamin, known as L-Ascorbic acid. Fortified with salicylic acid and vitamin E for optimal efficacy, the antioxidant-rich serum provides hydrating, protective and skin-smoothing benefits, alongside promoting a resurfacing effect. Hyaluronic acid supports the skin’s moisture, helping to plump the look of the complexion for a glowing result. Packed in an airtight bottle, the specialised serum stays stable until the very last drop, providing the same potency throughout use.