Nanoparticle in sunscreen
Nanoparticulate materials are already common in sunscreens.
- they provide better skin coverage and more effective protection from the sun’s ultraviolet rays.
- nanoparticles may enter cells and cause damage.
- they may also be harmful to the environment.
- they could be more reactive or toxic than bulk material.
- these risks are difficult to determine because nanoparticles have not been in use for very long.