All of these would be minutely effective in a brew and would negatively affect the brews ph in a long term ferment it would be a waste of your time- being that leucine , isoleucine, and valine could have beneficial effects on the finished product suspended in the right tea it would most likely be degraded by the Co2 buildup and directly effect the yeast created as a by-product of the fermentation - could even affect the scoby's ability to uptake the sugars. Add your creatine and BCAAS to the finished product for maximum efficiency - possibly in a bucba-smoothie.
Good luck!
Wizard works