Hi, guys! I just started taking methylation support stuff, such as mb12, adb12 and methylfolate, and so far so good, but I think i am having a reaction to mannitol, xylitol (expected since I have candida and overall sensitive gut) and possibly flavors in Jarrow, Solgar and Countrylife formulas. Does anyone know of any that are pure and do not contain needless additives. Has anyone tried to get any from compounding pharmacies? Does one needs a prescription for that? Also what about private label labs? I am relatively new to this, but have tried researching for the last few days and can not find any of these that do not contain things that I listed above. I really do not want to stop taking them, but I also do not want to continue taking things that i know are not good for me, even if it contains a helpful active ingredient. I've been avoiding flavors and colorants and sweeteners for so long, it is really frustrating now to have to be OK with having them in my system and suffer the issues that come from them. Any suggestions?