Safety is a common concern with nanotechnology in sunscreens. Numerous studies have been conducted to assess the safety of nanoparticles. Here are some key findings:
- Skin Penetration: Research indicates that nanoparticles of titanium dioxide and zinc oxide do not penetrate healthy, intact skin. They remain on the surface, providing a barrier against UV radiation. - Toxicity: While some studies suggest potential toxicity of nanoparticles in certain conditions, regulatory bodies such as the FDA and European Commission have deemed these nanoparticles safe for use in sunscreens.
