Hyaluronic Acid Serum Give thirsty skin a simple boost of lightweight hydration. Hydration Serum features hyaluronic acid to help attract and retain moisture at the skin’s surface, leaving skin feeling softer, smoother and refreshed without a heavy or greasy finish. This easy-to-layer serum is a beautiful everyday choice for dry, dehydrated or tight-feeling skin and works well alongside other products in your facial ritual. Apply to clean skin before moisturizer, morning or evening. Best for: Dry • Dehydrated • Tight-feeling skin • Everyday hydration