I get a lot of my supplements at my local health food store. I know they have a huge turnover and so nothing is sitting on a shelf long. And it is a co-op so I reap the benefits of buying there.

But Amazon is so convenient for things I can't get local. Plus there are a huge amount of vitamin companies online. I have actually opened windows on 4 companies and picked my products and cost compared. Sometimes I go with the least expensive just to see the quality and if i will continue to shop with them.

Amazon for the reviews, but sometimes i buy direct from the manufacturer for better exp date. Luckyvitamin on ocasion. Dont forget Costco, sometimes the will have something you use..

Local store and Vitacost online.

I like iHerb a lot for general supplements.

For bulk herbs I like 1st Chinese Herbs, Mountain Rose Herbs, Woodland Essence, and Monteagle Herbs.

Mean vitacost. I love that site for other reasons :)

I like Vitacost and Pure Formulas best. Pure Formulas carries more Pure Encapsulations than Vitacost. I also like iHerb.

I'm not sure where to buy Researched Nutritionals or Xymogen. I think you might be able to order directly from Researched Nutritionals if you get the account info from your doctor.