Insights
Can You Measure Antioxidants in Your Body?
Key Facts
- Direct whole-body test
- Not currently practical
- Common proxy marker
- Skin carotenoid levels
- Method
- Non-invasive, light-based scanning
Why 'Every Antioxidant' Isn't Measured
The body uses dozens of different antioxidant compounds, some produced internally and others obtained through diet. Measuring all of them simultaneously isn't practical outside a research lab, so real-world tools focus on one representative, measurable marker instead.
What's Actually Being Measured
Most consumer-facing antioxidant scanners measure skin carotenoids specifically — a subset of dietary antioxidants that accumulate in skin tissue and respond to light-based measurement. It's a proxy, not a complete picture, but it's a reasonably good one for tracking dietary patterns over time.
Frequently Asked Questions
Is a skin scan as accurate as a full lab panel?
They measure different things. A skin scan estimates one marker (carotenoids) quickly and non-invasively; a lab panel can measure specific compounds directly but requires a blood sample and lab processing.
Why not just measure everything at once?
Testing every antioxidant compound isn't currently practical or necessary for everyday tracking — a focused, repeatable marker is more useful for spotting trends.