Our highest-potency daily moisture booster! Reviva Labs has now compounded a higher level of premium Hyaluronic Acid into a precious fluid that can help raise skin's moisture level to fill-in furrows, plump up tissues and tone-down lines. Apply under creams in the evening or alone to hydrate skin. If also seeking firmness, alternate with our DMAE Firming Fluid. Benefits: Unlike products that depend on moisture in the air, HA can help hydrate skin even in dry climates or heated rooms that rob skin of moisture.