So, trying to figure out what was in them, I asked him if I could see the bottle. Of course, the label is almost entirely in Chinese characters, so I couldn't read it. There was, however, a website in English, so I looked it up.
The site, however, wasn't any more helpful at finding out the ingredients. It was written in badly broken English (I can't believe people are being suckered into giving this site their credit card numbers).
Highlights from the site:
"Ingredientts: herBs that are good for yu."
"Side efects: If pills make yu sick, no take."