Many people have purchased methylcobalamin at iherb.com and other places on the web for years. It is possible to find it quite a few places now, but the prices are much higher at physical stores.

I'm sure many are good. Jarrow is one of the good ones. No need to spend huge amounts of money on something some distributer says is "the best," "the only," etc.

The important thing is a good brand and at least 1000 mcg methylcobalamin.

rose