Shiitake mushroom (Lentinula edodes) extract is used in skincare for its antioxidant, brightening, and skin-conditioning properties, attributed to compounds like kojic acid, polysaccharides, and beta-glucans. It is often included to support hydration and even skin tone.
| Reported effect | How often | Notes |
|---|---|---|
Allergic contact dermatitis | Rare | Skin redness, itching, or rash possible in sensitized individuals. |
Irritation or sensitivity | Uncommon | Mild stinging or redness, more likely on compromised or sensitive skin. |
Flagellate (shiitake) dermatitis | Very rare | Linear streaky rash typically linked to ingesting undercooked mushrooms; topical cosmetic cases are exceedingly uncommon but theoretically possible. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.