About

San Antonio-based Photoprotective Technolgies (PPT) has led the industry of photoproptection over the least two decades.   Its use of melanin as a paradigm for developing sunglass lenses, skin care products and light filters has enabled  PPT to identify emerging trends and issues in multiple industries.  For example, the damage and glare caused by excessive high energy visible (HEV) violet and blue light  is a growing problem in the lighting industry with  the demise of the incandescent bulb and its ready replacement with overly-bright blue LED lights;   and the ophthalmic industry is recognizing the increased risks of macular degeneration from exposure to the HEV part of sunlight.  Finally, the skin care industry  is now recognizing that HEV light is a major factor in sunlight damage to the skin.   PPT's melanin products progressively reduce the wavelengths of  HEV light without disturbing the perception of color.   PPT has recently discovered that the red and near infrared part of sunlight is therapeutic to our vision and that the melanin transmission spectrum is ideal not only for photoprotection  - but also for phototherapy, a new idea.