The LED Light Mask by BeverlyBeauty is a unisex facial treatment suitable for all skin types. This LED light therapy mask provides various benefits for the face, such as improving skin elasticity, reducing inflammation, and promoting collagen production. With a regular size and easy-to-use formulation, this unit from China is designed to enhance your skincare routine with its soothing and rejuvenating properties. The nm were not specified when I purchased. Consult with your doctor before using. Seller is not responsible for any damage that could potentially be caused by this light.