The Ordinary Vitamin C Suspension 23% + HA 2% is a high-potency, water-free formula that combines 23% pure vitamin C (ascorbic acid) with 2% hyaluronic acid. This combination helps brighten the skin, reduce the appearance of fine lines, and improve overall skin texture. The vitamin C works as an antioxidant, while hyaluronic acid offers hydration, making it suitable for individuals looking to improve their skin's radiance and moisture levels. It may feel slightly gritty on the skin due to the high concentration of active ingredients.