
Understanding Carotenoids
Carotenoids are naturally occurring plant pigments responsible for the vibrant yellow, orange, and red colours found in many fruits and vegetables. Beyond their role as pigments, carotenoids are recognised as powerful antioxidants and encompass a large family of naturally occurring phytonutrients.
Some of the best-known carotenoids include Alpha-carotene, Beta-carotene, Lycopene, Lutein, Zeaxanthin, and Astaxanthin — compounds widely studied for their relationship to nutrition, oxidative balance, and healthy lifestyle patterns.
Because the human body cannot produce carotenoids naturally, they must be obtained through nutrition and supplementation. Over time, carotenoids accumulate in the skin, making skin carotenoid status a meaningful indicator associated with fruit and vegetable intake and overall lifestyle habits.
PRYSM iO™ uses non-invasive light reflection technology to assess skin carotenoid status in approximately 15 seconds.
Non-Invasive
Light Reflection Technology
PRYSM iO™ uses advanced optical reflection technology to assess skin carotenoid status through the palm of the hand. During the assessment, specific wavelengths of light interact with the skin tissue and are reflected back to the device, where carotenoid-related signals are analysed.
This non-invasive approach allows PRYSM iO™ to provide a fast and user-friendly wellness assessment experience without the need for blood sampling or laboratory testing. The process is:

Fast
Painless
Non-invasive
Designed for everyday wellness use
For many users, measurable wellness insights become a motivating way to stay engaged with healthier daily habits over time.

Supported by Wellness Research
PRYSM iO CLINICAL STUDIES
DR. ANNE CHANG
Stanford Medicine
DR. HANJOE KIM
DR. MEIQIN CAI
DR. ZOE DRAELOS (SAB)
DR. CHANG | DR. KNAGGS | DR. HESTER
The Rise of Measurable Wellness
As interest in longevity, personalised health, and preventative wellness continues to grow, more people are seeking meaningful ways to better understand the impact of their daily habits.
PRYSM iO™ is part of a growing movement toward measurable wellness — combining technology, wellness science, and behavioural awareness to support healthier lifestyle choices over time.
For many users, measurable feedback can become a powerful source of motivation, consistency, and engagement in their wellness journey.

Designed for Modern Wellness Communities
PRYSM iO™ is used by wellness-conscious individuals, health professionals, fitness communities, beauty and wellness clinics, and people interested in measurable wellness and healthy ageing.
The platform is designed to support more engaging wellness conversations through visual insights, technology-driven experiences, and lifestyle awareness.