The Advanced Acid collection pairs our patented NIA-114 molecule with the most potent, skin-transforming acids for maximum efficacy and results. NIA-114 + Hyaluronic Acid, a powerful hydrating molecule, can hold 1,000 times its weight in water. Paired with NIA-114, this dual-action serum visibly plumps skin with moisture to bring dehydrated skin back to life.Chamber 1 contains 6 unique forms of Hyaluronic to visibly plump skin with immediate and sustained hydration. Chamber 2 combines NIA-114 and ceramides to lock in moisture and prevent water loss. At the push of a button, the dual-phase formula fuses into the ultimate moisture treatment.