There is an ingredient growing on a single Greek island that has been used for skin healing for over 2,000 years. Ancient Egyptian embalmers preserved with it. Byzantine empresses applied it to their skin daily. The physician Dioscorides prescribed it in the first century AD. Today, Swiss biochemistry laboratories have built a patented natural retinol alternative from it — and Korean beauty brands charge $200 for a single serum containing it.
It is called Chios Mastic. And it is the foundation of every Santorini Sun Beauty product.
What is Chios Mastic?
Chios Mastic is a resin that grows exclusively on the Greek island of Chios, produced by the Pistacia lentiscus var. chia tree — a tree that takes 40 to 50 years to mature before it produces the resin. It is harvested by hand in just 24 villages on the island. It grows nowhere else on earth.
The European Union has awarded Chios Mastic PDO status — Protected Designation of Origin — the same protection given to Champagne and Parmigiano-Reggiano. UNESCO has recognised the traditional knowledge of Mastic cultivation as Intangible Cultural Heritage of Humanity.
This is not a trendy wellness ingredient. This is one of the most historically documented, scientifically studied, and legally protected botanical ingredients in the world.
What Does Chios Mastic Do to Your Skin?
1. It Blocks Collagen-Destroying Enzymes
As skin ages, enzymes called collagenase and elastase break down the collagen and elastin fibres that keep skin firm and youthful. Chios Mastic contains triterpenic acids scientifically proven to inhibit both collagenase and elastase at a molecular level — actively preventing the enzymatic destruction of your collagen.
2. It Stimulates New Collagen Production
Remarkably, Mastic simultaneously stimulates fibroblast activity, encouraging your skin to produce new collagen from within. Protection and regeneration in one ingredient, at the same time.
3. It is Antimicrobial and Anti-inflammatory
Well-documented antimicrobial properties make it beneficial for acne-prone and sensitive skin. Its anti-inflammatory compounds calm redness and irritation across all skin types.
4. It is a Powerful Antioxidant
Rich in antioxidants that neutralise free radicals — the molecules responsible for oxidative stress and accelerated skin ageing from pollution, UV exposure, and stress.
Why Swiss Labs Patented a Retinol Alternative From Mastic
Mibelle Biochemistry — one of the world's leading cosmetic ingredient innovators — developed a natural retinol alternative derived entirely from Chios Mastic, confirming what the ancient Greek world already knew: Mastic is one of the most powerful skin-regenerating botanicals on earth.
How Santorini Sun Uses Chios Mastic
At Santorini Sun Beauty, we use PDO-certified Chios Mastic — verified, traceable and authentic — in every product. Our founder Paulina Theodore is of Greek heritage and a certified product formulator. She built the brand around Mastic not as a marketing angle, but because she comes from the culture that has known about this ingredient for millennia.
Our Golden Ora Face Serum Oil contains PDO Chios Mastic alongside four other rare Greek botanical superfoods — Prickly Pear Seed Oil, Helichrysum, Pomegranate and Frankincense. Available for $39 — while Korean beauty charges $200 for a single Mastic serum.