Elta MD Moisturizer is a unique formula that holds the skin's natural moisture and hydrates for up to 12 hours. It melts quickly, spreads easily and penetrates deep into cell layers, working from the inside out. Great as a nighttime moisturizer and often recommended for use in the treatment of severely dry or damaged skin, EltaMD Moisturizer relieves irritation, redness and flaking caused by some medications. Our unique formula is sensitivity-free, non-comedogenic, fragrance-free and preservative-free, and helps relieve symptoms of very dry, irrititated and inflexible skin.