Pistacia Lentiscus Gum (mastic) ek resinous material hai jo mastic tree se aata hai. Skincare mein isse oil control ke liye use hota hai kyunki ismein astringent aur antibacterial properties hoti hain. Antioxidants bhi hote hain isliye skin ko soothing effect milta hai. Film-forming agent ke taur pe bhi kaam karta hai jo skin par ek protective layer banata hai.