Quercetin is a flavonoid extracted from the inflorescences of Sophora japonica L.
It is considered a natural inhibitor of various intracellular enzymes and is also a natural antioxidant. It was recently discovered that the molecule destabilizes 3CLpro or one of the proteins that make up the coronavirus, useful for its proliferation. In this way viruses like COVID-19 lose their vitality.
This product is available in both powder and granular form.