Propylene Glycol causes significant number of reactions and was a primary irritant to the skin in low levels of concentrations. May cause eye irritation. Exposure can cause gastro-intestinal disturbances, nausea, headache and vomiting, central nervous system depression. Flouridation is also responsible for 40 million cases of arthritis, dental deformity in 8 million children and allergic reactions in 2 million people. Flouride causes bone cancer and increases the rate of oral cancer.
Alcohol acts as a solvent in the mouth making tissues more vulnerable to carcinogens.
Talc is a chemical similar to asbestos, a known cancer causing substance. Presumably by clogging the pores that secrete those necessary fluids. Also, those fine little particles manage to get into the system. And being similar to asbestos is not comforting, especially when used on babies and genital areas. Talc's harmful effect on human tissues has been known for quite some time.