A deep hydrating serum paired with a high-strength vitamin formula makes the perfect combination of The Ordinary skin care products. HYALURONIC ACID FACE SERUM: This face care serum leaves your skin feeling smoother and softer. Take advantage of the state-of-the-art hydration support formula with ultra-pure, vegan hyaluronic acid. The next-generation HA crosspolymer at a combined concentration of 2% delivers multi-depth hydration in a water-based formula with added vitamin B5 for enhanced surface hydration. NIACINAMIDE SERUM 10% (VITAMIN B3) + ZINC 1%: The high-strength vitamin and mineral formula contained in this skin serum reduces the appearance of skin blemishes and congestion. Over time, a high 10% concentration of this vitamin alongside zinc salt of pyrrolidone carboxylic acid has been shown to significantly reinforce the skin barrier function, improve skin smoothness, and increase skin radiance. Directions HYALURONIC ACID 2% + B5: Apply a few drops of this face serum in the morning and evening creams. If irritation occurs, cease use and consult a physician. Use only as directed on unbroken skin. Patch testing prior to use is advised. Keep out of reach of children. Directions NIACINAMIDE 10% + ZINC 1%: Apply to the entire face morning and evening before heavier creams. If irritation occurs, cease use and consult a physician. Use only as directed on unbroken skin. Patch testing prior to use is advised. Keep out of reach of children.