Used Once- perfect condition MEGELIN 7 colors light therapy mask for face & Neck is made of flexible silicone material,Face Mask 288 Leds, Neck Mask 198 Leds,with high-quality and adjustable straps that conform to fit the facial better.adaptable to various face shapes, foldable for convenient portability 【Upgraded Light Therapy for Face Mask】 LED facial mask upgraded to 7 colors of light, which can emit 7 different wavelength bands suitable for different types of skin. When using it, 420nm-850nm,you can choose the wavelength that suits you. 【Usage Frequency 】MEGELIN LED light therapy requires regular sessions to maintain results, It is recommended to use Facial Light Therapy 3-4 times a week, the single use time is 10-20 minutes. Continuous use for 4-6 weeks can help improve your skin condition. Results may vary due to individual skin differences.Note: Please do not use while charging 【Eye-Friendly & Lightweight】MEGELIN led light face mask is recharegable, equipped with eye pads, which can protect your eyes well during use and avoid eye discomfort caused by light exposure.Lightweight, comfortable to wear, will not cause pressure and marks on the face.Note: Please do not use it with the adapter