La Roche-Posay Hyalu B5 Serum is a 30ml facial serum designed to provide intensive hydration and support the skin barrier. The formula features a concentrated blend of hyaluronic acid, which acts as a moisturizing agent to improve skin elasticity, and vitamin B5, also known as panthenol, to support skin regeneration. Additionally, the serum contains La Roche-Posay thermal water to soothe the skin. This lightweight, non-greasy product is free from fragrances, parabens, and mineral oils, making it suitable for all skin types, including sensitive skin. To use, apply a small amount to clean, dry skin in the morning and evening, massaging gently until absorbed. This serum aims to leave the skin feeling smoother and more hydrated, helping to protect against environmental factors while maintaining a healthy appearance for daily facial care routines.