The Avant 8-Hour Anti-Oxidising & Retexturing Hyaluronic Facial Serum is a powerful blend of hyaluronic acid, antioxidants, and skin-loving actives that hydrates, smooths, and brightens your complexion. It helps protect your skin from environmental stress while refining texture and boosting that healthy glow. Lightweight but hardworking, it sinks in quickly and layers beautifully under your other products.