It Works! I happen to be utilizing my nuface and LED mask for six months, and a short while ago added the neck and dec perfector. It will come packaged in a carrying circumstance with forty one-use adhesive strips, keeping the device sanitary for each use. As for your wavelengths, https://bestredlighttherapymask46790.wikilima.com/805961/detailed_notes_on_current_body_red_light_mask