Red Bull Halal??

The following are Halaal, but do utlise alcohol based flavouring carriers (see below for more details).

Red Bull Energy Drink (250ml) (alcoholic flavourings)
Red Bull Energy Drink (355ml) (alcoholic flavourings)
Red Bull Sugarfree (250 ml) (alcoholic flavourings)
Red Bull Sugarfree (355ml) (alcoholic flavourings)
Red Bull Cola (250 ml)
Red Bull Cola (355ml)

Alcoholic Flavourings Clarification:

Alcohols used as a carrier for food colourings and flavourings are permissible as long as they are not sourced from dates or grapes.

Read the full article here:
Alcohol Flavourings Clarification - http://www.gmwa.org.uk/foodguide2/index.php?page=viewquestion&id=200

Source of Article