The review examines the impact of health warning messages on tobacco packages, focusing on their effectiveness in communicating health risks and promoting smoking cessation. The evidence suggests that the size and design of warnings significantly influence their impact: prominent, pictorial warnings are more effective than text-only warnings. Larger warnings, particularly those with vivid, fear-arousing images, increase health knowledge, perceptions of risk, and motivation to quit. These warnings are also more effective among youth and can help prevent smoking initiation. The review highlights the importance of contextual factors, such as social norms and individual differences, in mediating the impact of warnings. It concludes that comprehensive health warnings on tobacco packages are a powerful tool for communicating health risks and promoting smoking cessation, with pictorial warnings being the most effective. Future research should focus on message content, cultural appropriateness, and implementation strategies.The review examines the impact of health warning messages on tobacco packages, focusing on their effectiveness in communicating health risks and promoting smoking cessation. The evidence suggests that the size and design of warnings significantly influence their impact: prominent, pictorial warnings are more effective than text-only warnings. Larger warnings, particularly those with vivid, fear-arousing images, increase health knowledge, perceptions of risk, and motivation to quit. These warnings are also more effective among youth and can help prevent smoking initiation. The review highlights the importance of contextual factors, such as social norms and individual differences, in mediating the impact of warnings. It concludes that comprehensive health warnings on tobacco packages are a powerful tool for communicating health risks and promoting smoking cessation, with pictorial warnings being the most effective. Future research should focus on message content, cultural appropriateness, and implementation strategies.