In recent years, functional vape juice has gradually become a popular product in the market. These vape juices not only offer a substitute for nicotine but also claim to provide various health benefits, such as vitamin vape juice, melatonin vape juice, CBD (cannabidiol) vape juice, and herbal vape juice. By adding different health-related ingredients, these vape juices have attracted many consumers. However, the safety and effectiveness of these products are highly questionable, as many of the added ingredients have not undergone rigorous scientific testing before being rushed to market. Therefore, consumers should exercise caution when selecting and using these products.

First, vitamin vape juice claims to supplement the vitamins required by the body through vaping. While this might sound like a convenient way to take vitamins, the truth is that vitamins may undergo chemical changes during the high-temperature heating process, producing harmful substances. For example, vitamin E acetate, when inhaled, can cause lung damage. This was confirmed during the 2019 "vaping-related lung injury" outbreak, where many cases were linked to vape juice containing vitamin E acetate. This event sparked widespread concern about the safety of functional vape juice.

Second, melatonin vape juice is a product that claims to help improve sleep quality. Melatonin is a hormone secreted by the pineal gland, primarily responsible for regulating the sleep-wake cycle. While oral melatonin is considered relatively safe in the short term, its long-term safety has not been adequately studied. Adding melatonin to vape juice, inhaled into the body, could have unknown effects. How inhaled melatonin is metabolized and whether it may harm the respiratory system are unresolved questions. Moreover, melatonin use requires precise dosage control, which is difficult to achieve through vaping, potentially leading to overdose and adverse reactions.

CBD vape juice is another type of functional vape juice that has garnered attention. CBD is a compound extracted from the cannabis plant, known for its potential health benefits such as anti-inflammatory, anti-anxiety, and pain-relief effects. While CBD has shown some effectiveness in certain medical applications, its safety as a vape juice additive remains controversial. First, the quality of CBD vape juice varies significantly between brands, and the content and purity of CBD are often difficult to guarantee. Second, CBD may interact with other medications, leading to reduced effectiveness or increased side effects. More importantly, there is currently insufficient research to prove the long-term safety of inhaling CBD via vaping.

Herbal vape juice promotes itself as containing natural herbal plant extracts, claiming various health benefits such as stress relief and immune system enhancement. However, when herbal extracts are heated to high temperatures, they may decompose and produce harmful substances. Furthermore, the chemical composition of different herbal extracts is complex, and their interactions and effects on the human body are not well understood. Some herbal extracts may be potentially toxic or allergenic, and inhaling them could cause respiratory discomfort or allergic reactions.

The rise of functional vape juice reflects consumers' desire for a healthier lifestyle. However, with the wide variety of functional vape juice products available on the market, consumers should remain rational and cautious. First, choose products from reputable brands and official channels to avoid purchasing vape juice from unverified sources. Second, check the product’s ingredients and labels to understand the origin and content of the added health ingredients. More importantly, pay attention to scientific research and recommendations from authoritative organizations, and avoid blindly trusting exaggerated health claims from manufacturers.

In conclusion, while functional vape juice claims to offer various health benefits, its safety and effectiveness have not been fully validated. Consumers should exercise caution when using these products and avoid being misled in the pursuit of health. Only through scientific research and strict regulation can functional vape juice truly become a safe and effective health product.