Thickening Agent Goed Textuurversterker No known benefits Thickening Agent description Substances that can have a soft to hard wax-like texture or a creamy, emollient feel, and that can be great lubricants. There are literally thousands of ingredients in this category that give each and every lotion, cream, lipstick, foundation, and mascara, as well as other cosmetics products, their distinctive feel and form. The various combinations of thickeners play a large role in whether or not you prefer one product over another.