I have just been reading about a successful trial of glutathione nasal spray, and looking into trying it for my husband, but I have not been able to find a UK source, and the American prices are really high if it’s just going to be a waste of money. Did you manage to track down a UK supplier, and, if so, did you see any improvement? I seem to spend a great deal of time researching alternative solutions to the non-motor symptoms, but haven’t found anything that has proved effective.