Resveratrol belongs to the polyphenol family, found notably in Japanese knotweed. Of its two isomers, only trans-resveratrol stands out for remarkable stability and optimal assimilation. Precise extraction achieves a concentration above 99%, rare on the supplement market. Micronisation reduces particle size to just 1.5 microns, markedly improving bioavailability: the body absorbs each capsule quickly and efficiently, with an absorption rate above 80%.

Regular use of micronised trans-resveratrol offers several benefits. This powerful antioxidant works directly against the free radicals responsible for oxidative stress and premature cellular ageing, and its contribution to longevity is of particular interest to anti-ageing research. By protecting cell membranes and limiting LDL cholesterol oxidation, trans-resveratrol actively supports cardiovascular health and helps maintain arterial flexibility. Athletes and people prone to chronic fatigue also value it for supporting recovery and resistance to stress.

Trans-resveratrol can naturally isomerise into the less effective cis form under heat or light, so production and packaging carefully protect the powder from exposure — temperature-controlled storage and opaque packaging ensure maximum stability. The plant is grown without chemical inputs and extracted using a hydro-alcoholic eco-extraction method, entirely free of polluting solvents. The capsule is vegetable (pullulan), the bottle is a compostable vegetable-based flask, and the product is not tested on animals.

For optimal assimilation, take one capsule a day, ideally with a meal containing some fat to maximise solubility. Extended courses help build and sustain the antioxidant benefits. Many users combine this supplement with red-fruit polyphenol complexes, punicalagins or scutellaria for a further antioxidant boost.

Trans-resveratrol is generally very well tolerated at the recommended dose. Mild digestive discomfort may occasionally occur, particularly if taken on an empty stomach. As with any potent antioxidant, consult your doctor if you are on anticoagulant treatment or have a chronic condition. Caution is advised for pregnant or breastfeeding women. 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 is the difference between trans- and cis-resveratrol?

Trans-resveratrol has a stable structure that is easily assimilated by the body, while cis-resveratrol is more unstable and less bioavailable. Micronisation of the trans form further enhances absorption for a stronger biological effect.

What guarantees the purity of trans-resveratrol?

Purity depends mainly on the extraction method, use of a non-GMO plant, and the total absence of contaminants such as heavy metals, industrial solvents or additives. This extract is tested to a certified purity above 99%, with hermetic packaging protecting it from moisture and light.

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.