Mastic Gum

Mastic gum is the natural resin of Pistacia lentiscus, an evergreen shrub famously cultivated on the Greek island of Chios. The resin forms as slow, pearl-like droplets that are harvested by hand — prized around the Mediterranean for centuries and used today as a smoothing active in skincare.

In cosmetics, mastic gum is used as a smoothing and rebalancing active. The Nine Aurora uses it to help visibly improve elasticity, refine skin texture and reduce the look of pores, imperfections and expression lines.

Yes — this is one of the reasons formulators value it. Thanks to its rebalancing and perfecting action it is particularly suitable for blemish-prone skin, helping the complexion look more even, refined and balanced rather than shiny.

Mastic gum is valued in anti-aging formulations for helping to visibly improve skin elasticity and soften the appearance of expression lines. Like all cosmetics, it works on how skin looks and feels — smoother, firmer and more even with consistent use.

In cosmetic formulation it is often described that way: a stable, well-tolerated botanical used to promote a smoother, more even-looking skin surface — supporting the look of skin quality over time.

From the bark of Pistacia lentiscus on Chios, Greece, where growers still score the branches and collect the slow-forming "tears" by hand. Chios mastic is so distinctive it holds an EU protected designation of origin.

It is the same natural resin — but a different use. Chewing mastic is a wellness trend; a 2024 study in the Journal of Oral Rehabilitation found months of regular gum-chewing did not change how the jawline looks. In skincare, mastic gum is applied topically, where it helps refine texture and support the look of firmness.