The CDC says methanol is used as a solvent, pesticide, and as a fuel source. Anyone exposed to methanol can experience nausea, vomiting, headaches, and blurred vision. Under extreme circumstances, methanol can cause permanent blindness, seizures, permanent damage to the nervous system, and it can kill. The FDA has also said that it has already seen an increase in potential methanol poisoning cases, "including blindness, cardiac effects, effects on the central nervous system, and hospitalizations and death, primarily reported to poison control centers and state departments of health." (via Physician's Weekly)
The ingredient doesn't appear on the label, but from one to 80 percent of methanol contamination was found during testing (via USA Today). What's more, Livescience quotes the FDA as saying that while you can get methanol poisoning by using the substance on your hands, it is most lethal when ingested — which can happen accidentally or if hand sanitizer is treated as an alcohol substitute.
The FDA first raised the alarm that hand sanitizers with methanol were making their way into the country back in mid-June. The agency has also repeatedly said that methanol should not be used in hand sanitizers because it is toxic — and that it will continue to pursue the matter.
