In this live episode of Beneath the Label, Dr. Joe Chang (Chair, Scientific Advisory Board) explains the 20-year journey from the original BioPhotonic scanner to the new Prysm iO device. Learn why skin carotenoids are a powerful biomarker for antioxidant and nutritional status, how Nu Skin’s Raman scanner database + AI translate scan readings into actionable nutrition insights, why Prysm iO is more precise and consumer-friendly, and which products (like LifePak Nano) and behaviors most reliably raise your score. Practical takeaways include scanning frequency, how scores relate to blood measures, and the science behind Nu Skin’s scanner-guaranteed products.