For the Rejuvenating Red Beauty Beam, we recommend using it for up to 15 minutes per day on each treatment area. For the Anti-Breakout Blue Beauty Beam, we recommend using it for up to 5 minutes per session on each treatment area, and up to 15 minutes a day. Using it for a longer duration than the recommended time may increase the risk of skin irritation or damage, including symptoms such as low-temperature burns, redness, pain, warmth, or swelling.