Bringing together marine-derived water reservoirs, The Ordinary Marine Hyaluronics provides a lighter alternative to The Ordinary’s ‘ Hyaluronic Acid + B5 Hydration Formula’. This advanced formulation contains a 23% concentration of active ingredients, including marine-derived water reservoirs & skin-friendly marine bacteria to help hydrate & moisturise your skin. This alternative to hyaluronic acid is designed to attract & hold water, making it perfect for every skin type, but especially those with dehydrated & dry complexions. Your skin will be left feeling refreshed & hydrated. Absorbed immediately into your skin, the Marine Hyaluronic formula gives an instant yet long-lasting boost of hydration, ensuring that your skin is kept plump & moisturised throughout the day & night. This lightweight hydration serum can be used both morning & night to help maintain the skin’s moisture barrier. It also contains other protective & health-supporting active ingredients like Hawaiian Red Algae, micro-filtered Blue-Green Algae, Glycoproteins & Amino Acids. This formula is free from alcohol, oil, silicones, nuts, gluten & is also cruelty-free & vegan..