Contains CDC recommended 62% alcohol. Kills 99.99% of common germs and bacteria that can cause illness. Leaves hands clean and fresh. No residue. Packaged in collapsible bottle that forces evacuation of 99% of refill contents. Sealed sanitary refills prevent cross-contamination found in bulk systems. PET (#1) plastic refill bottles contain 30% less plastic than HDPE, are 100% recyclable and contain no metal parts.