Red/near-infrared (near IR) light therapy, commonly called LLLT (low level laser therapy) or photobiomodulation, is a type of therapy involving particular wavelengths of light, used to achieve either local or systemic health benefits. Red and near IR light exert substantial local effects on tissues, the mechanisms by which this happens are not fully established, though multiple hypotheses have been put forth. In addition, they have been shown to have systemic benefit as well. While past research has focused more on the local effects, anecdotal evidence and some recent published research suggest the systemic effects are also very significant. The underlying mechanisms producing these effects may well be different than those underlying local effects. One of our hopes with providing high-powered lights is for people to be able to engage in high-dose therapy for systemic effects, as we ourselves have.
Yes, particularly in the last 10-15 years a lot of research has been published on red light therapy. Both human and animal research show benefits for a wide range of conditions. For a very extensive overview of the available research, click here.
Red and near-IR light have been studied for a wide range of ailments, too many to list. Here are just a few:
While some research hinted at potential detrimental effects when using excessive doses, these concerns may have been overstated. Rather than producing detrimental effects, these excessive doses may merely produce less benefit. However, there is also some evidence suggesting individual tolerance and optimal dose of light is highly variable. All this points towards self-experimentation being a reasonable avenue to go down. Some may find their tolerance and ideal dose to be rather low, others will benefit from much higher doses.