Only Red Bull original and Red Bull Sugar Free are certified kosher by the London Federation but are not marked as such. All RB is exported from Europe so the US gets the same RB as everywhere else.
The other two authentic RB products – shots and cola – are NOT certified kosher.
Any other flavors of RB would not be kosher either – but they must be trial products or actually not RB as RB officially makes only five products.
-regular (kosher)
-sugar free (kosher)
-shots (not kosher certified)
-sugar free shots (not kosher certified)
-cola (not kosher certified)