I met the Grahams at a natural convention.  My goal that trip was to find the best natural sunblock, and universe answered my request.  Shannon Graham and her husband created the line for their adorable son who was born very sensitive.  The SunClear uses microfine technology, NOT nano technology, and also uses the ZinClear technology to avoid whiteness that Zinc Oxide (only sun-blocking ingredient you should use) causes.  It is as waterproof as a natural sunblock will be, and has a light pleasant scent.  You need very little as it uses no fillers (if it feels greasy you are wasting it), and since it has very moisturizing ingredients you don’t need a separate moisturizer underneath.  The vegetable oil in it is sunflower oil (don’t worry, it’s not GMO infested corn or soybean oil).