Reduce the effects of cosmetic serum and antivirus. Sophora alopecuroides is a herb of Sophora genus in Leguminosae or a shrub with woody base, which has the effects of clearing away heat, promoting diuresis, relieving pain and killing insects.

Sophora alopecuroides is extracted with organic solvent to obtain n-butanol fraction, which contains total saponins, flavonoids and biflavonoids, and can reduce serum in cosmetics.

Alkaloids and flavonoids, the main secondary metabolites in Sophora alopecuroides, can play an antiviral role in cosmetics.