“
deeper issues (e.g. muscle, bone, brain, organs, glands, fat, etc.), we want around 10-40J per area, so optimal treatment times and distances with the lights I recommend are: 2-7 minutes per area (if the light is 6” inches away) 5-10 minutes per area (if the light is 12” away) I do not recommend going further away than 12” if you’re treating deeper tissues. Roughly 6” inches away is ideal for delivering the most light to the deeper tissues. If you get the Joovv light, these tend to have lower power density than the Red Rush360 and Platinum lights. So for the Joovv lights, you’ll want to add roughly 20-40% more time to the above dose ranges (when using them from 6-12” away from your body) E.g. If you would use the Red Rush360 for 10 minutes (from 12” away), you may need to use the Joovv Mini for 13-15 minutes to get the same dose. For use on the brain, some people recommend much relatively higher doses (the high end of my recommended dose ranges), due to the fact that it’s harder to deliver a significant amount of light to the brain tissues since the light has to penetrate through the skull before it can reach the brain. Thus, less overall light actually makes it to brain tissue (relative to say, treating fat or muscle tissue). As a general rule, the deeper the tissue and the more it is covered by bone, the longer doses will be needed to deliver a significant amount of light to that targeted tissue.
”
”
Ari Whitten (The Ultimate Guide to Red Light Therapy: How to Use Red and Near-Infrared Light Therapy for Anti-Aging, Fat Loss, Muscle Gain, Performance Enhancement, and Brain Optimization)