This document summarizes information about toxic chemicals in cosmetics. It notes that some cosmetic ingredients may act as hormones like estrogen and increase cancer risk. Health Canada regulates cosmetics under the Food and Drug Act and has a list of over 500 prohibited and restricted ingredients. However, ingredients are not reviewed for safety before products go to market. The document provides information on chemicals of concern that are sometimes found in cosmetics like parabens, phthalates, and formaldehyde. It encourages consumers to check ingredients, limit use of products with chemicals tied to cancer or hormone disruption, and advocate for stronger regulations.