I recently acquired a new camera and have been pretty obsessed about keeping it in tip-top condition all the time, so this particular find is very interesting. Purosol is said to be an eco-friendly lens cleaner, described as
…an advanced cleaning formula that was originally developed for NASA and the U.S. military to safely clean their lenses and high-end electronic displays. Unlike ordinary lens cleaners, which contain alcohol, ammonia and other harsh solvents that can strip away at your lens surface, Purosol is made with a proprietary blend of organic plant extracts so it is completely safe, non-toxic and hypoallergenic. It does not use solvents, detergents or soaps of any kind in its formula so it will not leave anything behind that can further damage your equipment, or the environment.