Abstract: The invention relates to a modified beeswax and to a process for this modification. The modification consists of a treatment of beeswax to remove free acids. According to the invention this can be accomplished by reacting the free acid present in beeswax with glycidol at a temperature of 80.degree. C. to 120.degree. C. in the presence of a basic catalyst. This modification results in an improvement of the properties of the beeswax. The modified beeswax being outstandingly suitable for use in cosmetic preparations whereby it does not cause any crystallization in the fatty phase. The modified beeswax has so called self-emulsifying characteristics and displays an outstanding dispersant action for solid substances. The compatibility with pigmented products and mixtures of mineral products in an oil phase is good.