This powerhouse serum is our most deeply penetrating yet, with a strategic team of 2.5% Encapsulated Retinaldehyde, skin density-building Monk’s Pepper, skin matrix-repairing Crocus Chrysanthus Bulb Extract, and phospholipids. This serum’s nourishing gel-oil emollient base buffers our actives and provides a moisturizing cushion to help ward off irritation and dryness for your bounciest, firmest, and most radiant skin yet.