I have FINALLY found a non-acidic form of vit C — ascorbyl palmitate! I’d had it before, but only in tablet or powder form. But now it’s in capsule form. NOW brand.
From the Linus Pauling Institute:
Although ascorbyl palmitate is also available as an oral supplement, it is likely that most of it is hydrolyzed (broken apart) to ascorbic acid and palmitic acid in the digestive tract before it is absorbed.
http://lpi.oregonstate.edu/infocenter/vitamins/vitaminC/