Typically, dry skin is treated using creams, lotions and body butters. These products are known as emulsions which are made by combining oil and water using an emulsifier. The average emulsion contains around 70% water, which is inactive in treating dry skin. Therefore an opportunity existed for Bio-Oil to create a more active formula which would replace inactive water with oil. Technically it is very difficult to make a product predominately of oil and only 3% water.
The answer lay in creating a gel. Bio-Oil® Dry Skin Gel is made with 87% oil, 10% humectants and only 3% of water.