The recommended usage time for each mode is three to five minutes and the frequency differs per each mode. We recommend: Lift Mode: Three to five-minute sessions daily. Clean Mode: Three-minute sessions, two to three times a week. Moisture Mode: Five-minute sessions, two to three times a week. Rejuvenation Mode: Five-minute sessions, two to three times a week. Eye Mode: Three-minute sessions, two to three times a week. Cool Mode: Three-minute sessions daily.