Firm, smooth, and even the look of skin with this brilliant serum designed to support collagen and barrier function. The bottle has two compartments separating the ceramide-peptide complex from the moisture-boosting hyaluronic-acid-and-antioxidant blend. As you dispense, the two combine for maximum potency. We love the silky, instantly absorbing formula—and, of course, the luminous, firm results.50 mL