LED therapy was well-tolerated by all patients with no adverse effects. We concluded that 830 and 633nm LED phototherapy is an effective approach for skin rejuvenation (2)
(2) J Photochem Photobiol B. 2007 Jul 27;88(1):51-67. Epub 2007 May 1. A prospective, randomized, placebo-controlled, double-blinded, and split-face clinical study on LED phototherapy for skin rejuvenation: clinical, profilometric, histologic, ultrastructural, and biochemical evaluations and comparison of three different treatment settings. Lee SY1, Park KH, Choi JW, Kwon JK, Lee DR, Shin MS, Lee JS, You CE, Park MY.
NASA studies shows that near infrared treatment can "...provide low energy stimulation of tissues which results in increased cellular activity .. including .. collagen production..."(3)
(3) *NASA Light Emitting Diode Meddical Program – Progress in Space Flight and Terrestrial Applications Harry T. Whelan, M.D. 1a,2,3 , John M Houle, B.S.1a , Noel T. Whelan1a,3 , Deborah L. Donohoe, A.S., L.A.T.G. 1a , Joan Cwiklinski, M.S.N., C.P.N.P. 1a , Meic H. Schmidt, M.D. 1c , Lisa Gould, M.D., PhD.1b , David Larson, M.D.1b , Glenn A. Meyer, M.D. 1a , Vita Cevenini3 , Helen Stinson, B.S. 3 1a Departments of Neurology, 1b Plastic Surgery and 1c Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, (414) 456-4090 2 Naval Special Warfare Group TWO, Norfolk, VA 23521, (757) 462-7759 3 NASA-Marshall Space Flight Center, AL 35812, (256) 544-2121