Perrier was a popular sparkling mineral water brand known for its purity and natural carbonation. In 1990, scientists discovered traces of benzene, an industrial solvent and carcinogen, in Perrier bottles. This was a major crisis for the brand known for purity. Perrier initially did not respond well, failing to acknowledge it as a global issue and giving inconsistent messages. The scandal severely damaged perceptions of Perrier and its sales never fully recovered. Lessons include being transparent, not breaching consumer trust, having coherent global communications policies, and recognizing some brand crises are worse than others.