FDA researchers report that multiple active ingredients wind up in users’ bloodstream and recommend toxicology testing to investigate the clinical significance of the findings.
A new nanoparticle-based sunblock is effective, long-lasting, and may eliminate absorption of potentially harmful chemicals into the skin and bloodstream, a mouse study shows.
Shortly after demonstrating dung beetles’ ability to navigate by the stars, researchers in Sweden provide evidence that the insects can also use the sun to find their way.