Cera microcristallina is used as a thickener and to give products a semi-solid to solid smooth texture. Mostly used in lip care products. https://www.paulaschoice.com/ingredient-dictionary/ingredient-cera-microcristallina.html?q=Cera%20Microcristallina&fdid=ingredients. Gives increased viscosity Cera Microcristallina is a wax used to make a liquid product thicker in consistency. It is rated safe by the EU and by Allergy Certified. https://sandstonescandinavia.com/da/ingrediens/cera-microcristallina/