There is no known toxicity associated with high doses of menaquinones (vitamin K2).

However, the Kukui seed oil has no known toxicity and is a non-irritant, even to the eyes.

Because of this known toxicity, only some formulations of glyphosate are registered for use in aquatic applications.

Workers exposed to chemicals with known toxicity might voluntarily sign away rights to sue for punitive damages in return for higher wages.

He also reported the frequent use of two psychoactive substances with known toxicity: alcohol and cigarettes.

Xylitol has no known toxicity in humans.

But this pesticide has limited application because of its known toxicity to bees.

The EPA, on the other hand, finds no known toxicity for citronella.

Due to the known toxicity of the element mercury, there is some controversy about the use of amalgams.

Advertisements emphasized the drug's complete safety, using phrases such as non-toxic and no known toxicity.