Researched by Helena DeMaria-Williams
Formula IngredientAstringentINCI: Pistacia Lentiscus Gum
Pistacia lentiscus gum (mastic gum) is an aromatic resin harvested from the bark of the mastic tree, native to the Greek island of Chios. It functions as a film-forming agent, mattifier, and absorbent. Clinical studies show it inhibits 5-alpha reductase type I enzyme, reducing sebum production and refining pore appearance — with 8% pore refinement at 14 days and 15% at 28 days.
Category
Astringent
Irritation Risk
Low
Skin Types
oily, combination, acne-prone, enlarged pores
pore refining, sebum control, mattifying, antimicrobial, film forming, oil absorption
Generally well tolerated. Long history of traditional use. No EU CosIng Annex restrictions. Rare sensitivity possible in individuals allergic to Anacardiaceae family plants.
Does not increase photosensitivity. No sun protection precautions required.
No known reproductive or developmental concerns for topical cosmetic use.
Pistacia lentiscus gum (mastic gum) is an aromatic resin harvested from the bark of the mastic tree, native to the Greek island of Chios. It functions as a film-forming agent, mattifier, and absorbent. Clinical studies show it inhibits 5-alpha reductase type I enzyme, reducing sebum production and refining pore appearance — with 8% pore refinement at 14 days and 15% at 28 days.
Individuals with very dry skin (mattifying effect may feel uncomfortable) should review the considerations above before use.