The counterfeit Botox products may be identified by the lot number C3709C3 on the outer carton and vial, according to the FDA. The outer carton may display the active ingredient as "Botulinum Toxin Type A' instead of 'OnabotulinumtoxinA' The carton may indicate 150-unit doses, which is not a dosage made by the companies AbbVie or Allergan.