Glycyrrhiza Glabra Rhizome/Root Extract
INCI: GLYCYRRHIZA GLABRA RHIZOME/ROOT EXTRACT
Reviewed by Daisy · Last updated 14 Aug 2026
A plant extract traditionally used to support skin soothing and address uneven pigmentation
Best For Skin Types
All, Sensitive, Dry
Addresses
Usage Frequency
Daily
What Is Glycyrrhiza Glabra Rhizome/Root Extract?
Glycyrrhiza glabra rhizome extract is derived from the roots of the liquorice plant, a herb with a long history in traditional medicine. The extract contains several bioactive compounds, including glabridin and liquiritin, which have been the focus of modern skincare research.
In cosmetic formulations, this ingredient functions as a skin conditioner. It is typically incorporated into serums, hydrogels, and treatment products where it may support skin barrier function and promote a more even skin tone.
How It Works
Licorice root extract contains several active compounds that interact with skin in different ways. Glabridin, one of the key constituents, has been studied for its potential to inhibit melanin production, which may help reduce the appearance of dark spots and uneven tone. Liquiritin and other polysaccharides in the extract are thought to support the skin barrier and promote hydration.
The extract also appears to support the skin's natural repair processes, though the exact mechanisms are still being clarified. When formulated effectively — particularly in nanostructured delivery systems — these compounds may penetrate more efficiently to deliver their benefits.
Clinical Evidence & References
Research on licorice root extract for hyperpigmentation is emerging. Studies using concentrated fractions enriched with specific compounds (glabridin or liquiritin) in advanced delivery systems show promise for addressing uneven skin tone, though most evidence comes from controlled laboratory or animal studies rather than large-scale human trials.
For wound healing, preliminary research in a burn model showed that licorice extract hydrogels supported healing progression, with lower concentrations (5%) performing well. However, evidence in humans is limited, and more research is needed to establish optimal concentrations and understand how this translates to everyday skincare use. The ingredient appears to be well-tolerated in the formulations studied.
How to Use
Licorice root extract is most effective when used consistently as part of a broader skincare routine. It works well in serums or essences applied to clean skin, and pairs effectively with other skin-conditioning ingredients. There is no evidence that higher concentrations necessarily deliver better results; in fact, some research suggests more moderate levels may be optimal. If using a product containing this ingredient for hyperpigmentation concerns, allow 4–8 weeks of consistent use to assess visible changes.
Safety & Precautions
Frequently Asked Questions
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Glycyrrhiza Glabra Rhizome/Root Extract is a variant of Glycyrrhiza Glabra Root Extract, the form you will most often see on an ingredients list.
A plant extract traditionally used to address uneven skin tone and soothe irritation
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