Questions About Face Scanning

When your heart beats, it pulses blood throughout your body, including the blood vessels in your face. This creates tiny color variations—imperceptible to human eyes but detectable by cameras. Face Scan captures these color changes and uses signal processing to calculate your heart rate. It's the same principle behind hospital pulse oximeters, just applied contactlessly through facial analysis.

Yes. Face Scan has been clinically validated at accuracy compared to medical-grade monitors. Many users compare results to their smartwatches and find remarkable consistency. The key to accuracy is good lighting and holding reasonably still during the 30-second scan.

Nothing—it never leaves your phone. Face Scan processes all video locally on your device and then discards the raw footage. We don't upload, store, or transmit your facial video anywhere. Your face is used purely for analysis and never retained or shared.

Yes. Our algorithms are specifically designed and validated to work accurately across the full range of human skin tones. The color changes we detect are relative variations, not absolute colors, making Face Scan inclusive and accurate for everyone.

Light makeup typically doesn't affect results. Heavy makeup that significantly alters your skin's appearance might impact accuracy. Glasses with anti-reflective coating are usually fine, though removing them can improve results if you notice issues. Face Scan provides feedback if it's having trouble getting a clear signal.

It's not necessarily 'better'—it's different. Face Scan offers convenience (no devices to charge or wear), comfort (nothing on your body), and spontaneity (scan whenever curious). Some people prefer wearables for continuous tracking. Face Scan excels at on-demand checks when you want insights without committing to wearing something.