Should I be concerned of the use of nanotechnology in the formulation of your mineral based sunscreens?
Nanotechnology is used in different arenas such as medicine and manufacturing, and refers to a range of particle sizes that are anywhere between 1 to 100 nanometers. The difference between 1 and 100 nanometers would be similar to comparing the size of you to, well, you multiplied by 100!
In the vast range of applications and substances where nanotechnology is used, it is as meaningless to categorically state "all nanoparticles are not good for the skin or can be harmful" as it is to say "all red things are hot." The size and substance make all the difference! So, when asking the question of whether nanoparticle sunscreen ingredients [titanium dioxide & zinc oxide] can absorb into skin and enter the body, it's important to ensure we're looking at the right information.
Some articles about sunscreen nanoparticles have stated these can interact with sunlight and cause damage to skin. As alarming as this may sound, this information is not supported by any legitimate published information and is without support from the medical world or government regulations. There is no evidence that nano-sized titanium dioxide or zinc oxide sunscreen actives pose any health risk (and certainly not in comparison to skipping, or skimping on your SPF!) If you would like more facts on the use of nanotechnology or have any specific questions, Client Services would be happy to help answer your questions directly!