This document summarizes the mechanism of action of hydrofluoric acid on human tissues and the simultaneous properties of a rinsing with Hexafluorine® (absorption quickness, innocuousness). It synthetically reminds the conditions of use of Hexafluorine® and the results of an animal experimental study that compares the efficiency of a rinsing with Hexafluorine® to classical decontaminations (Calcium Gluconate, water only ...).