Pistacia Lentiscus Gum (mastic) is a resinous exudate from the mastic tree used in skincare for its astringent, antibacterial, and antioxidant properties. It is often incorporated for oil control, soothing, and as a film-forming agent.
| Reported effect | How often | Notes |
|---|---|---|
| Allergic contact dermatitis | Rare | Sensitization to mastic resin components reported, particularly in individuals with fragrance or resin allergies. |
| Skin irritation or redness | Uncommon | Mild localized irritation possible, especially at higher concentrations. |
| Cross-reactivity with other resins/balsams | Rare | Patients sensitive to balsam of Peru or colophony may react. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.