Nanotechnologies use materials on an incredibly small scale: one nanometer is 10,000 times smaller than the diameter of a human hair. Their novel physical and chemical properties offer various opportunities for the engineering of products and this technology has the potential to bring many benefits to consumers.

But they also potentially pose a new safety threat for human health and the environment as they have been insufficiently tested before being marketed. Better regulation alongside more transparency for consumers about their usage is what we are calling for.