https://www.worldscientific.com/doi/abs/10.1142/S0192415X20500378

See Above Link for Herbal Formulas Used In China for COVID-19

First Defense

$18
Gui Zhi Tang, also known as "Cinnamon combination," in tincture form. A warming tonic often used during cold and flu season.

read research about antiviral activity of Chinese herbs: https://www.hindawi.com/journals/ecam/2015/367250/

See above link for information about Herbs with antiviral potential

AV Plus

$22
A combination of herbs based on the classical formula "Yin Qiao San" in tincture form, with additional herbs for their potential activity against viruses.