Glycyrrhetic acid is an active ingredient extracted from licorice root (Glycyrrhiza glabra) and is known for its various cosmetic properties:

Whitening and brightening : Glycyrrhetinic acid is used to lighten dark spots and even out skin tone. It works by inhibiting the activity of the tyrosinase enzyme, involved in the production of melanin, thus reducing the production of skin pigment.

Anti-inflammatory: It has anti-inflammatory properties that can help reduce irritation and redness on the skin, making it useful for treating skin conditions such as acne, dermatitis, and rosacea.

Antioxidant: Glycyrrhetinic acid acts as an antioxidant, helping protect the skin from damage caused by free radicals and premature aging.

Moisturizing: It can help keep your skin hydrated, improving its elasticity and softness.

Anti-Aging Properties: Glycyrrhetinic acid can stimulate collagen production in the skin, helping to reduce the appearance of wrinkles and fine lines.

Sebum Regulator: It has the ability to regulate sebum production, making it useful for people with oily or acne-prone skin.

Gentle Exfoliator: It can gently exfoliate the skin, removing surface dead cells and helping to keep pores free from blockages.

Compatibility with sensitive skin: It is generally well tolerated even by sensitive skin, if used in appropriate concentrations.

In summary, glycyrrhetinic acid is a versatile ingredient with multiple skin benefits, ranging from lightening dark spots to reducing inflammation and providing antioxidant protection. However, it is important to use it in moderation and following the manufacturer's directions, as too high concentrations or excessive use could cause skin irritation.