Does the Episencial sunscreen contain nanoparticles?

The short answer is: No, Episencial does not use nanoparticles in its formulas. Nanoparticles, particularly those of metallic ingredients, are so small that they are able to pass through the wall, or membrane, of cells in the body and into the bloodstream. Because mineral-based sunscreens use metals such as Zinc and Titanium as the active ingredient, it is helpful to understand that a particle of nano size is not the same thing as a nano particle.

A nano particle is any particle less than 100 nanometers in diameter (across). This can be confusing as a nano-sized material is not necessarily a nanoparticle. For example, a bulk ingredient material that has been reduced to 500 nanometers is NOT a nanoparticle because it is 5 times larger than 100 nanometers.

As a point of reference, a particle must be less than 50 nanometers (a nanoparticle) to enter skin cells; less than 70 nanometers to enter the lungs. Trying to fit a 100 nanometer particle into the skin cell membrane is like trying ... more.

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