A newspaper from Guangxi Zhuang Autonomous Region has tested six toothpaste brands that promise to whiten your teeth, including Colgate, Crest and Darlie, and concluded they all contain bleach.
The news was quickly picked up by major media outlets, including Xinhua and the People's Daily.
The China Oral Care Industry Association claims the research done by the newspaper doesn't prove anything. Colgate, Crest and Darlie did not immediately respond to requests for comment.
Libai, a toothpaste brand who is also involved in the scandal, announced it has sent their products to quality inspection institutions and is still waiting for the result.