Dry-Shampoo Danger Persists With Carcinogen in Many Brands (2)

Top-selling dry shampoos including Not Your Mother’s and Church & Dwight Co.’s Batiste contain high levels of benzene, the cancer-causing chemical that led Unilever to yank its product from shelves in October, according to a new independent study.

Valisure, a New Haven, Connecticut-based analytical laboratory, tested 148 batches from 34 brands of spray-on dry shampoo and found that 70% contained benzene. The chemicalcan cause certain blood cancers, such as leukemia. The company filed a petition Monday with the US Food and Drug Administration seeking to have the products that contain the substance recalled.

The results add to concerns that products sold over the ...