Fomes Officinalis (Mushroom) Extract is derived from the agarikon (larch bracket) fungus and is used in cosmetics primarily for its astringent and skin-tightening properties, often marketed to reduce the appearance of enlarged pores and control surface oil. It may also contribute mild soothing and mattifying effects in topical formulations.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or transient tightness | Uncommon | Astringent action may cause temporary dryness or a tight sensation, especially on sensitive skin. |
| Contact dermatitis / allergic sensitization | Rare | As a fungal-derived botanical, it can act as a potential allergen in predisposed individuals. |
| Erythema or stinging | Rare | Localized redness reported occasionally upon application to compromised or reactive skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.