Talk:Orokin Reactor/@comment-94.254.136.82-20190317160200/@comment-27641539-20190319211728

Unfortunately no. Once a catalyst, reactor, or forma has been used, it is permanently consumed. It's best to save them for frames and weapons you intend to keep forever.

Alternatively, you can sell them to other players in exchange for platinum or other weapons/frames, leveraging the fact that the reactors and catalysts have been used.