According to the card, glycerin is a liquid for external and local use that is used as a skin-softening product; it should be applied externally to the required areas as needed. The card does not name specific parts of the body or situations. It must not be used on open wounds, and contact with the eyes and mucous membranes should be avoided.
General information (not a manufacturer's instruction): the product is for external use only and is stored out of the reach of children.