Thieves Kitchen & Bath ScrubABOUT Thieves Kitchen and Bath Scrub gives you the power of a surface scrub free of harmful chemical smells and residue. Thieves Kitchen and Bath Scrub gains its tough scrubbing power from nepheline syenite, a mineral we obtain from responsibly mined sources in Ontario, Canada; baking soda that gently absorbs odors; sodium percarbonate that releases oxygen when combined with water, providing a powerful boost of cleaning power against tough stains; and