Well here is a good way to know EXACTLY what goes into your vitamins: MAKE THEM YOURSELF! REALLY!! It is not as hard as you might think!
Below you will find a quick tutorial on making your own.
1. Desired herbs - here we are making some vitamins to help with night vision and eye problems, so we chose Bilberry fruit and Horsetail/Shavegrass. You can find some high quality herbs here at BulkHerbStore.com
2. Gelatin Capsules- there are several sizes of capsules, so be sure to get the ones that fit into your capsule machine. If your not using a machine, then choose the size you will be most comfortable swallowing.
3. Capsule machine (optional)
4. Measuring devises
5. Small bowls