After prolonged sun exposure, the skin can feel tight and dry. La Roche Posay's Anthelios After Sun Milk nourishes the skin and provides intense hydration, thanks to a formulation of panthenol, glycerin, and thermal water. While panthenol (also known as provitamin B5) supports the natural regeneration process of the skin barrier, glycerin binds valuable moisture and provides long-lasting hydration to dry skin.