All natural. Shake. Shoot. Feel the Xtreme energy! Here's a burst of Xtreme energy to help you stay vibrant and focused. With more caffeine from guarana and more B-vitamins than our regular shots, plus the naturally revitalizing effects of live, raw Kombucha, you just shake and shoot - then feel the Xtreme energy! Contains 150 mg caffeine. Gluten free. Vegan. celestialseasonings.com.