Pero EXTRA Instant Nat Beverage, DkPero EXTRA Instant Nat Beverage, Dk PERO EXTRA Dark Roast Instant Natural Beverage Mix. 100% caffeine free. The perfect break from Coffee. PERO EXTRA dark roast captures the distinctive, rich flavor typical of French roast coffee in a naturally caffeine free instant beverage. Naturally Caffeine Free PERO EXTRA has no stimulants, so it will not elevate heart rate or blood pressure, cause sleeplessness or create any adverse physical ailments typically