From Harvard comes a nice synopsis of low level laser therapy, (LLLT.)  It is interesting to see the graphs which show how the response of tissues to LLLT continue to vary according to how long and how powerful of a dose is given. As with drugs and other treatments, there is a point of diminishing return, and the positive tissue response actually decreases with dosages above a threshold.

There is a lot of variety of dosages covered, giving pause to all who use LLLT in their offices.

I was gratified to see that the low dosages I recommend in my book “Rejuvenation” were backed up in parts of this research paper:

Abstract:

http://dose-response.metapress.com/openurl.asp?genre=article&id=doi:10.2203/dose-response.09-027.Hamblin

Full Version:

http://dose-response.metapress.com/media/253xqnrglgcw5bm4ek0j/contributions/a/4/3/6/a436330255602073.pdf