What if an ingredient could do the same thing as fluoride, without the controversy? Meet hydroxyapatite: it’s the main mineral our teeth and bones are made of and a proven, safe alternative to fluoride (but entirely non-toxic!) The first medical application of hydroxyapatite was in 1970 by NASA. At zero gravity, bones and teeth lose mass, so hydroxyapatite was administered to returning astronauts to help repair and remineralise their bones and teeth ✨🪐🌏🧑🚀