Licorice root Explained

Glabridin · Liquiritin · Dipotassium glycyrrhizate

Licorice root extract soothes redness and helps even out skin tone; small clinical studies back its brightening effect.

Label names (INCI): Glycyrrhiza Glabra (Licorice) Root Extract, Glabridin, Dipotassium Glycyrrhizate, Glycyrrhetinic Acid, Liquiritin

Written by the Oliareen editorial teamDermatologist review: pendingHow we write

What it does

Glabridin blocks pigment enzyme and UV inflammation; liquiritin disperses melanin; glycyrrhizate calms redness.

Often discussed for

This doesn't mean everyone with these needs it.

Concerns

Skin types

How to approach it

If you're new to it

Start one new product at a time and patch test first: a little on the side of the jaw for a few days. Keep the rest of the routine simple.

General education, not a diagnosis or treatment plan.

Works well with

Examples of common pairings, not guaranteed combinations.

Use carefully with

Stacking several actives raises the risk of irritation. If you're on any prescribed medicine, ask your doctor before adding an active.

Low; rare allergy
Safe in pregnancy

Possible reactions

Stop if burning doesn't settle, or if you get a red rash, itching, swelling or peeling. Swelling of the face, lips or eyes, or trouble breathing, needs urgent medical care.

When to see a doctor

Evidence and timing

Evidence: Evidence: moderate
Time to see a change (weeks): 4-12

Evidence comes from studies of specific formulas and strengths. Your product may behave differently.

Sources

Amer M, Metwalli M. Int J Dermatol 2000 (liquiritin 20%, 20 melasma pts, split-face)
Yokota T et al. Pigment Cell Res 1998 (glabridin mechanism)
J Cosmet Sci 2023 glabridin split-face