Regellin

Regellin is a fictional chemical compound that appears in the role-playing game Fallout 4. It is not a real-world substance. In the game's lore, Regellin is a potent chelate, a type of molecule that binds strongly to metal ions. This property makes it a valuable component in various industrial and technological applications within the game's post-apocalyptic setting. Specifically, Regellin is often found in crafting recipes for advanced weaponry and equipment. Its presence suggests a level of sophisticated pre-war chemical engineering. Players can harvest Regellin from certain locations or by dismantling specific junk items. Its scarcity and utility contribute to its importance for players looking to upgrade their gear and survive the harsh environment of the Commonwealth. The fictional nature of Regellin allows it to serve a purpose within the game's mechanics and narrative without needing to adhere to real-world scientific constraints.