How do you choose a good vitamin or supplement brand?

[OneHappyKhakiDuck]

Hello,

This topic has been on my mind for a while. How do you choose a good supplement or vitamin brand? And why do you stick with it?

Quest vitamins are always good. I've also started using Just Vitamins and have been pleased with their quality and pricing. I know this doesn't answer your more general question as to why or how people choose them. I suppose I got introduced to a brand by someone at some point and felt that the vitamin or mineral did what I expected it to do and then have stuck with it.