Gilderoy Lockhart claimed to have dealt with Transmogrifian Torture in Ouagadougou by giving townsfolk protective amulets, though this was most likely the feat accomplished by one of the more skilful wizards whose acts of selfless bravery Lockhart had taken credit for, by use of the Memory Charm.
In 1992, a booming trade in protective amulets started in Hogwarts School of Witchcraft and Wizardry because of Salazar Slytherin's monster being released from the Chamber of Secrets, which was petrifying students. Neville Longbottom purchased a Pointed purple crystal, a newt's tail, and an "evil-smelling green onion" that may have been a gurdyroot before it was pointed out to him that he was Pure-blood and therefore unlikely to be in danger. His response to this was that the monster went after Filch (through his cat) first, and everyone knew that he was a Squib. Later, when Voldemort returned, sales of protective amulets from dark creatures started up in Diagon Alley stalls.
In 1996, a peddler attempted to sell Molly Weasley one of these amulets to give to her daughter Ginerva, which his signage claimed were effective against werewolves, Dementors and Inferi, but he was not successful because her father Arthur Weasley, who was the current Head of the Office for the Detection and Confiscation of Counterfeit Defensive Spells and Protective Objects, was also present and threatened to arrest the dealer if he was on duty.
Materials used to in the manufacturing of amulets include: