I like Trader Joes brands. Or anything bought from an herbal store.
This is because I prefer supplements without unnecessary preservatives that are harmful to my health. I know that these stores get the best quality without the harmful additives. They also support local businesses and fair trade. They are quite conscious about what goes into such things whereas other stores market for pure capitalistic reasons.

I like Andrew Weil’s line. It’s expensive, though.

Twinlabs.

Pioneer, Solgar, Nature’s Way, for starters. OS-Cal (Calcium supplements bought at our supermarket) contains high fructose corn syrup, colored dyes and talc.