Standard Treatment: 10-minute treatments at 16-24 inches from your device is optimal. 15-20 minutes for symptomatic areas may be beneficial, but beyond that, the evidence points to diminishing returns (your cells can only absorb so much light at once).
How Often: To get the most out of your treatments, consistency is key. Makiuri recommends once daily use, although 2-3 times per day may be beneficial for symptomatic areas.