It s come down to this-- I have a real sensitive gut and I can't tolerate many supplements, least of all vitamin C. Vitamin C is a key nutrient to build the intestinal mucosa; I also have adrenal fatigue and it's the number one recommended supplement to support adrenal recovery. Catch 22 here....if I could take the C, I could improve both the gut and adrenals...but I can't take the C in oral form. I feel like a lunatic asking around all week and I've gotten no answers....any comments? Doesn't IV vitamins seem like a no-brainer for someone with gut issues?My integrative med doctor is giving me an Rx for injectable B vitamins, but the C has to go into the bloodstream. And it has to be made up fresh.