ABSTRACT
Hydrating substances are used in cosmetic products to retard moisture loss from the product and to increase the moisture content in material that is in contact with the product. This function is generally performed by hygroscopic substances, or humectants, which are able to absorb water from the surroundings. In the European Commission database with information on cosmetic substances and ingredients (CosIng), more than 900 substances are listed as humectants.
