Follow the directions in the manual supplied with the device.
General use: apply to clean, dry skin with makeup, sunscreen and heavy serums removed first. Sit the mask comfortably on the face so it is not pressing on the eyes, and keep your eyes closed throughout, or wear the eye protection supplied with the device. Select one of the four session timings (5, 10, 15 or 20 minutes) and do not run sessions longer or more often than the manual directs. Charge the battery fully before first use and recharge as directed. Switch off after each session, wipe the inner silicone with a soft, slightly damp cloth or a non-abrasive wipe, dry it, and store it away from direct sunlight. Do not immerse the device in water, and do not use it while charging unless the manual states this is permitted.
Warnings: do not use if you are taking any medication or applying any topical product that increases sensitivity to light, and do not use if you have a photosensitive condition or epilepsy. Do not look directly into the lights. Seek advice from a healthcare professional before use if you are pregnant or breastfeeding, have a skin condition, or are under the care of a dermatologist. External use only. Do not use over broken, irritated or sunburnt skin. Stop use and seek advice if irritation, discomfort or an unusual skin reaction occurs. Keep out of reach of children.