CoffeeBerry®* extract and PRIORI® CoffeeBerry®* products have been extensively tested in clinical In-Vivo and cell biological In-Vitro studies to demonstrate its superior ability to defend and protect cells against oxidative stress and free radicals, the major cause of skin ageing. More effective than green tea extract in all studies, it is not surprising that the clinical benefits in ageing skin were dramatic and visible after only short periods of use.