A nonprofit environmental group has sued the U.S. Food and Drug Administration, claiming the agency failed to regulate toxic chemicals found in “antimicrobial” soap and other personal care products.

The National Resources Defense Council alleges that two common ingredients, triclosan and triclocarban, can damage reproductive organs, sperm quality and the production of thyroid and sex hormones. It also names U.S. Department of Health and Human Services Secretary Kathleen Sebelius as a defendant.

The suit was filed in U.S. District Court in Manhattan on Tuesday. Representatives of the FDA and the Department of Health and Human Services declined to comment, saying it was a matter of policy not to comment on lawsuits.

Plaintiffs contend that the FDA violated federal law in its delay over establishing safe conditions of use. More than 30 years ago, the agency first proposed to regulate such products for over-the-counter use, but they remain on the market and are unregulated, the group said.

“As a result of the FDA’s lengthy delay, consumers remain exposed to triclosan and triclocarban through a variety of over-the-counter drug products, such as antimicrobial hand soaps, that proliferate on the market,” the lawsuit stated.