In a consumer fraud lawsuit filed Tuesday in Polk County District Court, Iowa Attorney General Tom Miller alleged that the makers of “drinkable sunscreen” failed to prove their product provides the advertised protection against cancer-causing ultraviolet (UV) rays.

The suit against Osmosis LLC and Harmonized Water LLC, and owner Benjamin Taylor Johnson, MD, of Evergreen, Colorado, alleges the defendants initially marketed their “UV Neutralizer,” proclaimed as the “world’s first drinkable sunscreen,” without any valid testing to prove its claims.

The lawsuit also alleges that tests were conducted that were “seriously flawed” and “recklessly gave consumers hollow assurances that they were protected from known health hazards.”

According to the suit, Osmosis claimed that UV Neutralizer water makes “scalar waves” “vibrate” above the skin, blocking carcinogenic UV radiation. It alleges the company has no basis for its scalar wave claim, and can’t prove the product works at all.

Under Iowa law, a seller claiming that its product can perform certain functions or provide certain benefits must have a reasonable basis for the claim.

For more on the lawsuit, click here.