We have taken our famous goat milk lotion and turbocharged it, making it SPF 25!
......…and we did it naturally!
Active Ingredient: Zinc Oxide- is a mineral prized for it's non-toxic, non-reactive, and luminous properties. It is the whitest and brightest of known pigments and has reflective qualities that can both scatter and absorb UV rays. It is a common ingredient in natural sunscreen, pharmaceuticals, and even food products.
There is controversy over using nano zinc oxide vs. non-nano zinc oxide. Nano zinc oxide particles are so small that they can be absorbed through the skin and enter into the blood stream. But they don't leave a white film so they are more aesthetically pleasing for sunscreen/lotion purposes. Non-nano zinc oxide particles are larger and may leave a chalky/white layer until they settle onto the skin. Non-nano zinc does not enter the blood stream.
I chose non-nano zinc oxide until I can read more studies and ascertain that nano particles are safe. So, be aware that this sunscreen may take more time to soak in and a little more rubbing to alleviate chalkiness (but your blood will be safe). I have found that after a few minutes the white will go away.