As discussed in the assay performed to test the inhibition of superoxide production by glabridin, it can be said that glabridin has an antioxidant effect in addition to its skin-whitening (anti-melanogenetic) and anti-inflammatory properties.
Licorice used topically is documented to reduce the amount of corticosteroids in dermatological infections. This is probably by inhibiting 11-β hydroxysteroid dehydrogenase which is responsible for the conversion of cortisol to corticosterone and thus, potentiating the effects of steroids.