I have always been loyal to my daily vitamins and supplements, making sure they are a part of my morning routine without fail. However, I have never been able to confirm if they are actually working, until now. Enter Nu Skin’s Prysm iO ($375) – a device that measures the antioxidants in your skin with a quick finger scan, providing the answer to the question that has always lingered in my mind. Is all of this actually making a difference?
Now, with Prysm iO, the answer is literally at my fingertips. Below, discover how this innovative device works and why it has become one of the most noteworthy wellness launches of the year.
The Benefits of Prysm iO
Prysm iO, created by Rhyz and launched by Nu Skin, revolutionizes the way we measure antioxidants. What once required expensive lab equipment and trained technicians is now condensed into a simple handheld disc.
Using Prysm iO is incredibly easy. From unboxing to your first scan, the process takes just a few minutes. Place your fingertip over the lens, wait for the LED lights to circle for 15 seconds, and a flashing light will indicate your “Prysm Score” color zone.

Behind this score lies the brand’s innovative Spectral Rai technology, which utilizes AI to translate over 100,000 light measurements per scan into a single, easy-to-understand number. The companion app keeps track of your scores over time, allowing you to monitor the impact of antioxidant-rich foods, lifestyle adjustments, and supplements.
Extensive research has been conducted on the device, with studies showing a strong correlation between Prysm iO readings and participants’ blood carotenoid levels. Additionally, Nu Skin’s own study demonstrated real improvements, with participants taking a multivitamin experiencing a 46% increase in scores on average.

What can you do with your score? The app provides personalized recommendations based on your results. If your score is lower than desired, focus on consuming colorful fruits and vegetables, prioritizing exercise, sleep, and stress management, and consider adding a Prysm Certified supplement to your routine. Regular scans are key to tracking progress over time.
The Bottom Line
For those who, like me, are committed to their vitamin regimen, Prysm iO offers a solution to the uncertainty. No more guesswork about the effectiveness of your supplements. With just 15 seconds and a finger scan, you can assess whether your routine is truly delivering results.

