Bumping up old thread.
I recently tried the Etherium Gold Focused brain powder. It had some effect initially(as usual for me). I felt very grounded and calm minded, but still a little energetic. This only worked for the first week, then just finding it easier to get into the meditation zone. Nothing major..
I guess it can be useful for things like chi kung, yoga, tai chi, practising katas, but not so much for hard physical gym type workouts, it is missing that energy burst.
Will finish the bottle and see if anything else is noticed.