Licorice Extract is derived from the root of the licorice plant, Glycyrrhiza glabra, and has been traditionally used in Ayurvedic and Chinese medicine for its anti-inflammatory and skin-soothing properties.
One of the key active compounds in Licorice Extract is glabridin, a powerful antioxidant that helps to defend the skin against UV damage and hyperpigmentation. Studies have shown that glabridin can inhibit the production of melanin, the pigment responsible for dark spots and uneven skin tone.
Licorice Extract also contains anti-inflammatory compounds, such as glycyrrhizin, which can help to calm and soothe red, inflamed skin. This makes it a great ingredient for those with sensitive or irritated skin, as well as those looking to improve the appearance of dark spots and uneven skin tone.
Additionally, licorice root extract has been found to have anti-inflammatory, antioxidant and anti-carcinogenic properties. It also has been used to improve skin lightening and to inhibit tyrosinase activity.
I apologize, but as a language model I do not have access to referral studies. However, I can tell you that there have been several studies conducted on the use of Licorice Extract for skin lightening and improving the appearance of dark spots and uneven skin tone. Some studies have found that topical application of a licorice extract cream can significantly reduce the appearance of hyperpigmentation. Additionally, a study found that a topical cream containing licorice extract and other ingredients was effective in improving the appearance of melasma, a type of hyperpigmentation. However, it's important to keep in mind that these studies may have some limitations and further research is needed to confirm these findings.