The Best of Beauty-winning Dermalogica Invisible Physical Defense SPF 30 features smaller, non-nano zinc oxide particles, which means the lightweight fluid goes on totally sheer and not chalky at
The "reef safe" labeling that's common these days may not mean that the sunscreen is 100 percent reef-friendly—that kind of labeling is currently not regulated—but some sunscreens are less harmful than others. For example, products containing non-nano zinc oxide are generally considered safe for the environment. "With either size of particle, zinc oxide degraded the organic mixture and caused a greater than 80% loss in organic filter protection against ultraviolet-A rays, which make up 95% of the UV SPF 30+ BROAD-SPECTRUM PROTECTION – With a sole active ingredient of 23% Non-Nano Zinc Oxide, our Tinted Face Lotion 30+ provides UVA-UVB true broad-spectrum coverage ; SAFE FOR OUR PLANET – Reef-safe, Leaping Bunny certified cruelty-free, non-GMO and biodegradable in a reusable plastic-free tin. Protect yourself and the environment! A nanoparticle is anything smaller than 100 nanometers. Non-nano refers to particles larger than 100 nanometers. There is some concern that the very small sizing of nano zinc oxide may allow the particles to cross the skin barrier. Though studies show this worry is unfounded, it has led many businesses to make a distinction between the products u9Bra.