Mankind has been making the use of metals in a diverse range of applications. Anciently, human species used it in the hunting weapons, while in later stages metals entered the domestic applications, too. The modern day applications extend their use in industrial molds, sophisticated robotic instruments, defense ammunition, etc. Therefore, there is a wide range of Praseodymium uses. Its area of use includes its use in industries, medical uses, and other cosmetic benefits of the metal. Along with the uses of Praseodymium metal, toxicity and its side effects are other biological properties of Praseodymium Metal everyone should know.