Tremanol and Trematin are two different supplements that appeared when I googled body tremors. If I had body tremors, I would become a researcher of causes of tremors to find out what could actally be contributing to produce this synptom. Apparectly many others are reporting tremors as a long covid symptom. Facebook has a long covid group and perhaps someone has been using a treatment. ALL THE BEST in resolving the source of the tremors and for feeling well.