What is the ruling on using ethyl-containing substances found in creams, such as ethylhexyl and monoethyleneglycol, with the exception of ethyl alcohol?

The fundamental principle regarding things is permissibility and purity. One does not deviate from this principle except with evidence indicating prohibition, impurity, or harm. Therefore, if the ethyl material is not an intoxicant or harmful, there is no objection to its use.