Calcium gluconate gel, sometimes referred to as HF antidote gel, just may save your skin if you use hydrofluoric acid. HF is an especially dangerous acid. In case of spillage on skin, the manufacturers of HF and chemical safety officers recommend you wash the skin immediately with cold water and then liberally apply the gel to the affected area keeping it on until you get medical attention. It is not for the purpose of treating a burn wound, please see a doctor for that. The gel works by providing calcium to hydrofluoric acid that the skin may have absorbed, so HF does not take as much calcium from tissues. The gel is useful to decrease the effect of HF spilled on skin but we stress that it should not be considered an alternative to seeking prompt medical attention. UPC 00198168787649