Improve your metabolic health with the Lumen device, a gold-standard metabolism tracker for personalized nutrition and wellness insights.

The Lumen device uses a CO2 sensor and flow meter to determine the carbon dioxide concentration in your breath, which indicates whether your body is burning fat or carbs. This measurement builds a daily nutritional plan.

Compact, but powerful. Lumen fits in your hand, pocket, or handbag - ensuring effortless measurements anytime, anywhere.