Active ingredient
Broussonetia Kazinoki Root Extract
Broussonetia kazinoki (paper mulberry) root extract is a cornerstone brightening ingredient in Korean beauty. Its distinctive prenylated flavonoids — particularly kazinol F and broussochalcone A — inhibit tyrosinase more potently than kojic acid in several comparative in vitro studies, making it highly effective for addressing melasma, PIH, and uneven skin tone. Widely used in K-beauty brightening serums and essences, often paired with niacinamide for complementary melanin inhibition mechanisms.
Also known as: Paper Mulberry Root Extract, Kazinoki Extract
tyrosinase-inhibitionskin-brighteningantioxidantanti-inflammatory
Benefits
- ✓Prenylated flavonoids (kazinol F, broussochalcone A) are potent tyrosinase inhibitors that reduce melanin synthesis — comparative in vitro studies show stronger tyrosinase inhibition than kojic acid, making this a high-efficacy brightening active for addressing melasma, PIH, and dullness
- ✓Antioxidant activity from the flavonoid-rich extract protects against UV-induced oxidative stress, a key driver of post-inflammatory hyperpigmentation
- ✓Anti-inflammatory properties reduce the inflammatory cascade that triggers excess melanin production after skin stress, complementing the direct tyrosinase inhibition
Watch for
- ⚠Generally well-tolerated; prenylated flavonoids may have very mild phytoestrogenic activity in vitro, not considered clinically meaningful at cosmetic topical concentrations
Compatibility
✓ Works well with
+ Niacinamide+ Tranexamic Acid+ Centella Asiatica Extract+ Glycerin
