Your Body Knows.
Now So Will You.

Prysm iO is the best antioxidant scanner device for home use available today. It uses clinically validated Spectral Rai™ technology to measure your skin carotenoid levels — a proven biomarker of antioxidant status — in just 15 seconds. Unlike generic wellness gadgets, it's backed by 20+ years of research, validated against the gold-standard BioPhotonic Scanner, and benchmarked against a database of over 21 million real scans. One device supports your whole family with unlimited scans.

The easiest way to measure antioxidants at home without a blood test is with a non-invasive antioxidant scanner like Prysm iO. Simply rest your fingertip on the device for 15 seconds — the scanner reads light absorption in your skin using spectral technology, giving you an accurate antioxidant score instantly. No needles, no lab visits, no waiting days for results. It's the same science used in clinical research, now available in a palm-sized device you can use every day.

Yes — the Prysm iO scanner is clinically validated and highly accurate. An independent study of 589 participants confirmed that Prysm Scores strongly correlate with blood serum carotenoid levels and the gold-standard BioPhotonic Scanner S3 (R²=0.84). The device performs over 700,000 individual hyperspectral measurements per scan and is accurate across all skin tones, delivering consistent results across multiple devices. If you're researching Prysm iO reviews, the clinical evidence is clear: this is a reliable, science-backed antioxidant test device.

A skin carotenoid test device uses optical spectroscopy to measure carotenoid levels stored in the skin — which directly reflects your body's antioxidant status and nutritional wellness. Carotenoids from fruits, vegetables, and supplements accumulate in skin tissue, making it a non-invasive window into your diet quality and cellular health. Prysm iO fires specific wavelengths of light into the fingertip and analyses how your skin absorbs them, producing a precise Prysm Score in 15 seconds. It's the most advanced consumer-grade skin carotenoid test device on the market.

A non-invasive antioxidant test measures your antioxidant levels without any needles, blood draws, or lab visits. Traditional antioxidant testing requires a blood sample sent to a lab — which is expensive, slow, and inconvenient. Prysm iO's non-invasive approach uses light spectroscopy directly on the skin, giving you clinically validated results in 15 seconds from the comfort of your home. It's particularly popular with med-spas, functional medicine practitioners, nutritionists, and health-conscious individuals who want real data without the hassle of clinical testing.

Yes. Prysm iO is built on over 20 years of carotenoid and antioxidant research, with more than 80 published peer-reviewed studies supporting the technology. A 589-person clinical study confirmed its accuracy and strong correlations with diet quality, sleep, UV exposure, BMI, and skin health. The device was validated against Raman spectroscopy and the BioPhotonic Scanner S3, making it one of the most rigorously tested consumer antioxidant devices available.

Absolutely. One Prysm iO supports unlimited users. Each family member gets their own personal profile in the companion app to track their individual antioxidant scores over time. It's a great way to make nutrition and wellness measurable and motivating for the whole household.

In clinical studies, participants using Prysm-certified supplements alongside dietary improvements saw up to 46% improvement in their antioxidant score within 12 weeks. Dietary changes alone — eating more colourful fruits and vegetables — can produce measurable score increases in as little as 4–6 weeks. We recommend scanning every 6–8 weeks to track meaningful progress. Seeing your score rise is one of the most motivating things you can do for your long-term health.

Prysm iO is a wellness device, not a medical device. It measures skin carotenoid levels as a biomarker of antioxidant status and nutritional wellness — it is not intended to diagnose, treat, or prevent any medical condition. It's designed to help you understand and improve your everyday health. Always consult your healthcare provider for medical decisions.

Your Prysm iO arrives in premium branded packaging including the device itself, a protective embossed carry case, and access to the AI-powered companion app for iOS and Android. The app lets you log scores, track trends over time, and receive personalised supplement and nutrition recommendations based on your results. Everything is designed to feel like a premium wellness purchase from day one.