Glabridin is a naturally derived active ingredient extracted from liquorice root (Glycyrrhiza glabra), recognised for its targeted action on the mechanisms of skin pigmentation.
It works by inhibiting the activity of tyrosinase, a key enzyme involved in the production of melanin. By binding to its active site, it helps to limit the formation of new pigments and reduce the appearance of existing dark spots.
Its action also extends to the regulation of cellular signals involved in pigmentation. Glabridin plays a key role in reducing the activity of endothelin-1 in keratinocytes, a mediator that stimulates the proliferation and differentiation of melanocytes.
By acting at several stages of the pigmentation process, it helps to reduce the intensity of dark spots and improve skin evenness.
Furthermore, Glabridine possesses antioxidant properties, which help to neutralise the free radicals involved in oxidative stress and skin ageing. It also exhibits anti-inflammatory activity, which helps to soothe redness and limit post-inflammatory hyperpigmentation.