Are there any alternatives to vitamin C as a water soluble antioxidant? I have spent the last few months trying every form and source of vitamin C and reacting badly to them all. I would like to find one that would be comparable to taking 1g vitamin C four times per day. The higher the half life the better, but if it is cheap enough I wouldn't mind dosing frequently. Come to think of it I am not sure what the half life of vitamin C is... I have read the half life of EGCg is a couple of hours, so am considering trying that. However, I don't know how to compare the dosage, nor if there are are any drawbacks like CYP inhibition.