The best formula and dosage of nourishing liver and protecting liver tea vary from person to person, depending on personal physical condition and needs. The following are some common formulas and recommended dosage of nourishing liver and protecting liver tea:

1. Gouqi Tea: Take proper amount of Lycium barbarum and Chrysanthemum, and brew with boiling water once or twice a day, and drink 100ml each time.

2. Rose tea: Take a proper amount of rose and green tea and brew it with boiling water once or twice a day, and drink 100ml each time.

3. Licorice tea: Take appropriate amount of licorice and red dates and brew with boiling water, once a day, and drink 100ml each time.

4. Tartary Buckwheat Tea: Take a proper amount of Tartary Buckwheat and Longjing tea and brew with boiling water once or twice a day, and drink 100ml each time.