Can Extreme C 20 really give you firmer less wrinkled, brighter looking skin and wipe up to 4.58 years off your skins appearance in just 84 days? Surprisingly, the answer is yes, it certainly can, plus a whole lot more. Now that’s a pretty bold promise, I know and the results even shocked us when all but one of the 27 participants in the 84 day Extreme C 20 efficiency study reported a perceived age reduction of between 1.4 to 7.6 years with the average age reversal score coming in at an incredible 4.58 years younger – now that’s "extreme".