Paula's Choice Rehydrating Moisture Mask with Plant Oils Antioxidants and Amino Acids smooths, softens, and hydrates dry skin instantly with plant oils and amino acids that create a moisture-locking barrier, giving skin a youthful, glowing appearance. This moisturizing mask can be used as often as needed to rejuvenate the look of dull, aging skin either as a 20-30 minute mask or an overnight mask for super facial hydration. Apply a generous layer after using your favorite Paula's Choice cleanser.