The bulk of all skin care products based on emulsifiers, i.e. the preparation, where water and oils are steadily bound to one another. Emulsifiers create this stabilized binding and naturally occur in our skin, to create a protective layer on the surface of the skin. The typical emulsifiers in natural cosmetics, based on plant fats are esterified with various sugars.
see Heike Käser 2010, "Naturkosmetische Rohstoffe", Linz, Verlag Freya, 3. Edition 2012