i like the "now" brand, and there are several good choices at luckyvitamin. some are wayyy over priced--and that doesn't mean it is necessarily better. lots of companies doing acai scams now--beware of the "free" trial!! do not ever give your credit card number for s/h of a "free trial"! people unknowingly agree to an "autoship" program where they start taking money out of your account right away--BEFORE the free trial is over and trying to cancel is a nightmare--usually you have to cancel your card to get them to stop.