Negative online reviews can impact customers' perceptions of products and their purchase intentions. While negative reviews are damaging for businesses, especially small ones, they do not always come from angry customers. Negative reviews that provide evidence and explanations can significantly affect product perceptions, but merchants can work to reduce this impact by improving products based on feedback and engaging respectfully with customers. Handled well, negative reviews can even be turned into opportunities for businesses if they address customers' concerns and perspectives respectfully.