Antiperspirant-deodorant cosmetic stick products

摘要

This invention provides an improved process for producing an antiperspirant-deodorant cosmetic stick product. An essential aspect of the process improvement is a phased order of ingredient addition and blending of formulation ingredients under controlled temperature conditions. Another essential aspect is the incorporation of particulate antiperspirant and alkali metal bicarbonate ingredients, at least one of which has ingredient particle surfaces coated with a hydrophilic organic polymer.