A class action lawsuit was filed against the parent company of LaCroix, claiming the popular seltzer water is being falsely labeled as "all natural".

The firm Beaumont Costales announced the suit was filed on behalf of plaintiff Lenora Rice and others who have been "injured by the popular sparkling water brand’s false claims to be “all natural” and “100% natural.”

The firm goes on to claim that testing revealed that LaCroix contains a number of artificial ingredients, including linalool, which is used in cockroach insecticide.

The suit alleges the plaintiff purchased LaCroix believing it was a "healthy and natural" drink when LaCroix actually contains ingredients that have been identified by the Food and Drug Administration as synthetic. These chemicals include limonene, which can cause kidney toxicity and tumors; linalool propionate, which is used to treat cancer; and linalool, which is used in cockroach insecticide.

National Beverage Corporation, the parent company of LaCroix,  has seen net sales rise from $646 million in 2015 to $827 million in 2017, and Nielsen data from grocery and convenience stores shows that the sparkling water category itself has more than doubled, growing from $961 million in 2013 to $1.8 billion.

The lawsuit seeks to stop LaCroix from falsely labeling and promoting its products as natural and to award damages to those individuals who purchased LaCroix under this inaccurate depiction.