There are many different types of acai berry juice to buy.  Make sure when you purchase acai berry juice it contains acai pulp from the berry.  The acai berry pulp holds the most vitamins and minerals of the entire fruit.  This is where the most nutrients come from.  Acai berry pulp tastes like a mixture between that of berries and chocolate.  It has the most concentrated minerals and vitamins of any other type of acai.  Make sure the acai pulp is freeze dried for shipping to retain its healthy benefits.  Often times if the berry is not preserved properly it will lose a lot of its nutritional benefits.  You can find acai pulp juice in the grocery store just check the label to make sure it is 100% organic acai berry.