As everyone who is even remotely familiar with the DC comic universe knows, kryptonite is the one weakness of the otherwise indestructible Superman. Kryptonite is described as radioactive remains of Superman’s home planet of Krypton and has not only detrimental effects on Superman but on other Kryptonians as well. As the Superman mythos developed, kryptonite was discovered to come in many different forms, each having their own unique effect on Superman.