deceptive advertising; misleading advertisement
Refers to advertising that exaggerates a product's quality, effectiveness, or value, often to the point of being deceptive. Commonly used in consumer protection contexts.
The company received a warning from the Consumer Affairs Agency for deceptive advertising.
誇大広告に惑わされないように、口コミをよく読む。
I read reviews carefully so as not to be misled by exaggerated advertising.