LED Light Therapy Mask FAQ: 

--- 1. Are the wavelengths of the LED mask fixed? 

Yes. The wavelengths (e.g., 630nm for red light, 415nm for blue light) are determined by the LED chips' physical properties. Adjusting intensity levels only changes light irradiance (mW/cm²), not wavelengths. Higher settings deliver more energy to the skin.

--- 2. Why does higher intensity increase irradiance?

Higher settings boost current or prolong LED activation, increasing optical power output .

 Note: - Heat risk: Prolonged high-intensity use may cause overheating - use cautiously. -Dosage formula: Efficacy depends on **total energy=irradiance × time**. Sensitive skin may prefer lower intensity + longer duration. 

--- 3. What are the functions of different wavelengths?

Common wavelengths: - Red (630-660nm): Anti-aging, collagen stimulation - Blue (415nm): Antibacterial (targets P. Acnes) - Yellow (590nm): Soothing, reduces redness - Near-infrared (850nm): Deep repair, anti-inflammatory -

-- 4. Can it damage eyes? 

This Mask with Eyes protection design.pls rest assure on this. - Blue/NIR light: Potentially retinal-harming - wear goggles or keep eyes closed. - Red/Yellow: Generally safe but avoid direct exposure. 

--- 5. Usage frequency and duration? 

General guidelines: - Frequency: 3-5x/week (daily blue light for acne; alternate-day red light for anti-aging) - Duration: 10-30 mins/session (follow manufacturer instructions)

6. Skin dryness/redness after use? 

Solutions: - Photothermal effect: Rehydrate immediately (mask/moisturizer) - Sensitivity: Reduce intensity/session time; build tolerance gradually 

--- 7. Can it replace professional treatments? 

No, but complements them: - Home devices: Lower energy, require consistency - Clinical devices: Higher power, immediate results 

--- 8. Contraindications Who should avoid: 

- Photosensitivity disorders (e.g., lupus) - Recent retinoid/acid treatments - Epilepsy (light flashes may trigger episodes)

9. Maintenance - Cleaning: 

Wipe LEDs with alcohol pads 

--- 10. Why no visible results?

Possible reasons: - Insufficient duration: Minimum 4-8 weeks required - Inadequate energy: Low settings need longer sessions - Wrong wavelength: E.g., using red light for acne