The efficacy of health instant tea varies with its ingredients. Generally speaking, health instant tea can play the following roles:

1. Improve bad breath: It contains tea polyphenols and other ingredients, which helps to inhibit the reproduction of oral bacteria and reduce bad breath.

2. Weight loss and slimming: Tea polyphenols can promote fat metabolism, which is conducive to reducing fat accumulation in the body and achieving slimming effect.

3. Improve sleep: It contains some ingredients such as magnesium and tea polyphenols, which helps to calm down and improve sleep quality.

4. Antioxidants: Tea polyphenols and other ingredients can scavenge free radicals, inhibit cell oxidation and help protect cell health.

5. improve immunity: it contains certain ingredients such as vitamin c, which helps to improve human immunity and prevent diseases such as colds.