LyphaZome Penetrating Body Lotion, from Dermazone Solutions, has petrolatum added as an extra 'Sealing Barrier'. This product is a medical -grade moisturizer designed to treat excessively dry skin. The 'Sealing Barrier' is provided to prevent skin water loss while nourishing the stratum with emollients and water. Patients suffering from severe burns as well as dry skin conditions associated with Diabetes, Psoriasis, Eczema, Alpecia and Xerosis have found this product to be extremely useful in replenishing moisture to the skin. 12 oz