The Ordinary Hyaluronic Acid 2% + B5 is a powerful hydrating serum that uses multiple molecular weights of hyaluronic acid to penetrate different layers of the skin. This allows it to deliver deep, lasting hydration, making the skin feel plumper, softer, and more supple. The addition of vitamin B5 (panthenol) enhances surface hydration and supports skin healing and barrier repair. With regular use, it helps reduce the appearance of fine lines caused by dehydration and improves overall skin texture, giving you a fresh, healthy glow.