© SPLNanotechnology is being used to make transparent sunscreen
Cosmetics containing tiny "nano" particles are being used widely despite unresolved issues surrounding their safety, a consumer watchdog warns. Many skin care products, including sunscreens and wrinkle creams, contain this technology to make them easier to apply and invisible on the skin.
But experts are concerned about their possible long-term effects on the body, Which? reports. Which? wants more safety checks and tighter regulation of their use. It says, at the moment, consumers cannot tell which products use nanomaterials as many fail to mention it.