When your skin is very dry, it can tighten and develop micro-cracks in the upper layer, leading to irritation and itchiness. Vaseline Advanced Repair lotion relieves dryness from the first application with faster moisturization for visibly reduced dryness within 24 hours. It contains glycerine and petroleum jelly, which are great ingredients for naturally dry skin. Glycerine and micro-droplets of petroleum jelly work together to lock in moisture and provide intensive moisturization to help heal dry skin and repair the skins natural barriers.