Pterostilbene belongs to the stilbenoid family of polyphenols, found in small quantities in fruits such as blueberries and grape skin. To obtain meaningful concentrations, the preferred raw material is dried Pterocarpus marsupium wood, a tree native to South Asia known for its rich content of plant actives and traditional uses. Extraction uses only water and ethanol as solvents, with no harsh chemicals, isolating the compound in a concentrated, stable form.

Pterostilbene’s structure is very close to resveratrol’s, with one key difference: two methoxy groups replace two hydroxyl groups. This subtle change makes pterostilbene more lipophilic, significantly improving its passage through the intestinal wall and its stability in blood plasma. While resveratrol is metabolised quickly after ingestion, pterostilbene shows a bioavailability three to five times higher, allowing it to reach target tissues effectively, including the brain via the blood-brain barrier.

Pterostilbene acts as a powerful cellular antioxidant capable of neutralising free radicals and modulating signalling pathways involved in oxidative stress. Its properties are studied for nerve cell protection, cardiovascular support and metabolic balance. Research also explores its potential influence on cellular longevity mechanisms, notably via activation of sirtuins, proteins involved in regulating ageing. Each capsule contains 50mg of pterostilbene at 90% purity in the biologically active trans form, with organic acacia fibre as a natural carrier and a pullulan shell — no synthetic excipients, magnesium stearate or titanium dioxide.

Recommended dose is 1 to 2 capsules a day, preferably with a meal to maximise absorption of the lipophilic compounds. Pterostilbene pairs well with synergistic extracts such as standardised magnolia bark, olive polyphenols, highly purified omega-3, or bilberry extract.

At the recommended dose, pterostilbene does not cause notable adverse effects when formulated without major allergens or irritants. If you are on medical treatment, consult a healthcare professional before starting a course. Food supplement. Not a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of children.

What advantages does pterostilbene have over resveratrol?

Its more lipophilic structure gives it a bioavailability three to five times higher. It crosses the intestinal barrier faster, stays more stable in the blood, and reaches target tissues such as the brain more effectively. For those who found limited results with resveratrol, pterostilbene can be a more effective alternative.

Can pterostilbene be combined with other antioxidants?

Yes, pterostilbene combines well with standardised magnolia, olive polyphenols, omega-3 and bilberry extract. These combinations broaden antioxidant protection across several physiological pathways. Our team at Herba Barona in Paris can help you build a tailored antioxidant routine.

Herba Barona is an independent specialist supplement shop in the heart of Paris — established in 2006. What you order is genuinely on our shelves: we ship from our own stock, with no dropshipping and no long waits.

Visit us at 10 rue Théophile Roussel, Paris 12 — or use Click & Collect and pick up your order in-store. We also deliver across France and Europe. Friendly, expert advice in English from our team.

Where is the shop?

Herba Barona is at 10 rue Théophile Roussel, 75012 Paris — a two-minute walk from Ledru-Rollin (line 8), close to Bastille. Open Tuesday to Saturday, 9:30 am–6:30 pm.

Can I order online or collect in store?

Yes. We ship across France and Europe under the same conditions as our French store, or choose Click & Collect to pick up your order for free at our Paris shop.