Liquorice and Skin Protection
Glycyrrhizic acid (GA), a component of liquorice is used in traditional and modern medicine for the treatment of numerous medical conditions including skin diseases and is used in beauty care products.
Afnan et al, investigated the effect of Glycyrrhizic acid (GA) against ultraviolet induced photoaging in human dermal fibroblasts and its possible mechanism of action.
GA treatment significantly inhibited photoaging. It achieved this by reducing Oxidative stress amongst other mechanisms in the skin. These findings may be useful for the development of natural and safe photoprotective agents against UVB irradiation.
In a separate review Draelos discusses the damage to the skin barrier. Skin disease can be treated by a variety of substances which includes licorice extracts. These substances are found in moisturizers that are sold as cosmetics and in prescriptions. This study examines the formulation and effect of skin barrier creams.