Revitalift Derm Intensives 1.5% Pure Hyaluronic Acid Serum is our most potent hydrating formula with our highest concentration of pure hyaluronic acid. So effective, it immediately hydrates, plumps skin in 1 week, and reduces wrinkles. What Does Hyaluronic Acid Serum Do? Hyaluronic Acid Serum is an anti-aging face serum for visibly bouncy and more youthful-looking skin. This lightweight hydrating serum absorbs quickly with no tacky feel or leftover residue and replenishes hydration with the following results: -Immediately, it delivers intense moisture that leaves the skin with a fully hydrated and dewy glow. -In 1 week, skin is visibly plumped and feels firmer and more elastic. The youthful, bouncy feel returns and skin is visibly refreshed and glowing with moisture. -Overtime, fine lines and wrinkles are visibly reduced.