Originally posted by Lynn S. M.:
Vitamin C, otherwise known as ascorbic acid. Emphasis on the word *acid* in connection with an open wound -- hence Clark's smirk?
I'll agree with that, but the article on tannins also mentioned them being found in citrus and in peppermint, not just the tea. He needed a liquid to bind together the ingredients otherwise how would it heal the burns from his heat vision? Sure, I guess they could have used water and made a sort of paste, but where's the fun in administering that?