The United States Consumer Products Safety Commission (CPSC) has begun a probe into whether or not Zhu Zhu Pets are unsafe. A California safety organization, Good Guide, has found higher than recommended levels of antimony and tin in the popular rodent toys. The company in charge of importing the toys from China, Cepia, stands behind its products, it said in a statement.
Good Guide bought three of the hot items, knowing the popularity of the Zhu Zhu pets meant that if Zhu Zhu Pets were unsafe, it would be a big issue for consumers. Their tests measured antimony, a heavy metal, at 93 parts per million in the toy's fur and at 106 parts per million in its nose. Both readings exceed the allowable level of 60 parts per million. As a heavy metal, antimony's effects on humans are similar to that of arsenic, according to Good Guide.
Good Guide used a different testing methodology, and their CEO clarifies and defends it at http://blog.goodguide.com/