Is the LED just a blue LED or a UV light?
Fouad J. asked on Dec 3, 2012
Hi Fouad! The Tanda Zap does not use UV light. The Zap uses 414nm blue LED light, which is not a UV wavelength. Light therapy using LEDs is a proven technology that has been used in clinics for rehabilitation and aesthetic applications for over 35 years. Thousands of scientific studies have proven this technology to be a safe and highly effective way to treat a variety of conditions. The blue light, sonic vibration and warming used by the device delivers a gentle treatment that is appropriate for all skin types and tones.
Kristi D. from Groupon replied on Dec 3, 2012