Is micronized zinc oxide the same as non nano?
The terms “nano” and “micronized” are synonymous. So, sunscreen bearing a “micronized zinc oxide” or “micronized titanium dioxide” label contains nanoparticles.
What does micronized zinc oxide mean?
“Zinc oxide can be ‘micronized,’ meaning it’s processed into very small particles, so small that the preparation appears clear when applied on the skin.” Non-micronized formulations, she explains, are often less cosmetically elegant and are more opaque or white.
Why are nanoparticles bad in sunscreen?
To date, the current weight of evidence suggests that titanium dioxide and zinc oxide nanoparticles (commonly used sunscreen active ingredients) do not reach viable skin cells; rather, they remain on the surface of the skin and in the outer layer of the skin that is composed of non-viable cells.
Is non nano zinc oxide toxic?
Is Non-Nano Zinc Oxide Sunscreen Safe? It’s a safe and healthy type of sunblock because the non-nano particles aren’t going to be absorbed by your skin and possibly go into your bloodstream.
Is non nano zinc safe?
Non Nano means it is larger than 100nm and therefore won’t penetrate your skin. Besides it being the safest option of UV filter to use for human health, it has also been shown to be the safest option for marine life and coral reefs, since Zinc Oxide in its Non-Nano form has been shown not to harm marine wildlife.
Is zinc oxide nano safe?
In summary, it is concluded on the basis of available evidence that the use of ZnO nanoparticles with the characteristics as indicated below, at a concentration up to 25% as a UV-filter in sunscreens, can be considered not to pose a risk of adverse effects in humans after dermal application.
Is non-nano zinc oxide reef safe?
Non-nano zinc oxide does not damage or adversely affect wildlife or water habitats or the animals that use them. It is marine and reef safe.
What is micronized zinc oxide?
To reduce the opaque appearance of zinc oxide, many sunscreen companies are making the particle smaller through a process referred to as “micronizing” to produce nanosized zinc particles. Nanoparticles are particles are typically less than 100 nanometers in diameter or 0.1 microns.
What is the difference between nano and non-nano zinc oxide?
Since “nano” refers to super-small particles, “non-nano” is, therefore, not as small. These are larger than 100 nanometers. So, if nano and non-nano zinc oxide are all about size, what does this have to do with your sun protection?
Why are nanoparticles more clear than zinc?
One of the reasons that nanoparticles are more clear and sheer is that they reflect less and less of visible light as the particle size becomes smaller and smaller. What this means is that nanoparticle zinc may not be as good as blocking blue light.
Why should you use non-nano zinc oxide sunscreen?
Using sunscreen made with non-nano zinc oxide is the best way to ensure that you and your family stay safe in the sun without worrying about harsh chemicals absorbing into your skin or the ocean. And as we mentioned above, all Mustela sunscreen products are formulated with non-nano zinc oxide for the most effective and gentle sun protection.