Polyphenols from grape seeds — concentrated into a single capsule
Optiolex OPC Grape Seed Extract delivers 500 mg of standardised grape seed extract with 250 mg of OPC per capsule — combined with natural vitamin C from camu-camu. Four ingredients, clearly declared. A brand from Austria.
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Concentrate from grape seeds
Standardised extract from Vitis vinifera with oligomeric proanthocyanidins (OPC) — the flavanol subgroup of polyphenols.
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Vitamin C for the immune system
Natural vitamin C from the South American berry Myrciaria dubia. Vitamin C contributes to the normal function of the immune system.
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Four ingredients — vegan
Short ingredient list, plant-based capsule shell, no gluten or dairy ingredients. No colourings or preservatives.
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Brand from Austria
Optiolex stands for clearly declared supplements with standardised plant extracts and a reduced formulation.
Grapes are a fruit-bowl classic — and most people reach for seedless varieties. The interesting part sits exactly where the seeds would have been: inside those seeds the plant stores its protective compounds against UV light and microbes. Secondary plant compounds like oligomeric proanthocyanidins are among the most intensively researched polyphenols today.
In a standardised extract the OPC content is precisely calibrated — which makes the concentrate predictable from one batch to the next. "Oligomeric", by the way, simply means: made of two to four linked catechin units. That smaller molecule size sets OPC apart from the large polymeric tannins responsible for the astringency in red wine. Alongside the extract sit camu-camu as the natural vitamin C source and calcium carbonate as an anti-caking agent.
The history of OPC research reaches back to 1948: French researcher Jacques Masquelier originally identified the compound class in the skins of peanuts. Grape seed extract has since become the standard source of oligomeric proanthocyanidins in food supplements — and the subject of a substantial body of scientific publications. The formula uses only four ingredients, manufactured to GMP standards.
📊 Optiolex OPC by the numbers
500 mg
grape seed extract per capsule
50%
OPC content of the extract
12 mg
vitamin C (15% NRV) from camu-camu
📋 Recommended intake
Take 1 capsule daily, whole, with sufficient water.
Composition per daily dose (1 capsule)
| Ingredient |
Amount |
% NRV* |
| Vitamin C |
12.0 mg |
15 |
| Grape seed extract |
500.0 mg |
** |
| of which OPC |
250.0 mg |
** |
* Percentage of nutrient reference values (NRV) per Reg. (EU) No 1169/2011. ** No NRV established.
Vitamin C contributes to the normal function of the immune system, to normal energy-yielding metabolism and to the protection of cells from oxidative stress.
Trade name: Food supplement with grape seed extract and vitamin C.
Ingredients: Grape seed extract (Vitis vinifera L.; 50% oligomeric proanthocyanidins (OPC)), glazing agent: hydroxypropyl methylcellulose (capsule shell), anti-caking agent: calcium carbonate, camu-camu fruit extract (Myrciaria dubia; 25% vitamin C).
Net quantity: 60 capsules (47.3 g e).
What sets OPC apart from other polyphenols?
OPC is short for oligomeric proanthocyanidins — a subgroup of flavanols within the broader family of polyphenols. "Oligomeric" describes a chain length of roughly two to four catechin units. That distinguishes it from monomeric proanthocyanidins (MPC, single units) and polymeric proanthocyanidins (PPC, longer chains often classed as tannins). Grape seeds are among the most concentrated natural sources of this compound family.
Why camu-camu as the vitamin C source?
Camu-camu (Myrciaria dubia) is an Amazon-rainforest berry with one of the highest natural vitamin C densities of any fruit. Optiolex uses a camu-camu extract standardised to 25% vitamin C, rather than synthetic ascorbic acid. Each capsule therefore provides 12 mg of vitamin C — exactly 15% of the EU daily reference intake.
⚠️ Mandatory notices: Food supplements are not a substitute for a varied, balanced diet or a healthy lifestyle. Do not exceed the stated recommended daily intake. Keep out of reach of young children.
📦 Storage & best-before: Store sealed in a cool, dry place, protected from light. Best-before date / lot number: see bottom of the bottle.
ℹ️ Note: The product may contain a food-safe silica-gel drying sachet. This is not for consumption. Manufactured to GMP standards.
💬 Frequently asked questions
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What's inside Optiolex OPC Grape Seed Extract?+
Each capsule contains 500 mg of grape seed extract from Vitis vinifera, of which 250 mg are oligomeric proanthocyanidins (OPC). Added to that is natural vitamin C from camu-camu — 12 mg, or 15% of the EU daily reference intake. Vitamin C contributes to the normal function of the immune system, to normal energy-yielding metabolism and to the protection of cells from oxidative stress.
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What does "50% OPC" in the extract mean?+
"50% OPC" describes the standardisation level: half the mass of the grape seed extract is present as oligomeric proanthocyanidins. With 500 mg of extract per capsule that comes to 250 mg of OPC. Standardisation means the content is defined and consistent from batch to batch — not a random value left to the raw material.
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When is the best time to take the capsule?+
One capsule daily, whole, with sufficient water. Many people take it in the morning with their first meal; others prefer a light snack alongside, since stomach tolerance is individual. Do not exceed the recommended daily intake.
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Is Optiolex OPC vegan and allergen-lean?+
Yes. All four ingredients are plant-based or mineral (the anti-caking agent is calcium carbonate) — including the capsule shell, which is made from hydroxypropyl methylcellulose (plant cellulose). The product contains no gluten-containing or dairy ingredients and no colourings or preservatives.
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Can OPC be combined with other supplements?+
In principle yes — for example with a vitamin complex or mineral preparation. Keep an eye on your total intake of individual nutrients (especially vitamin C if you combine multiple sources) and never exceed the recommended daily dose of any product. If you take medication long-term or live with a chronic condition, check with your doctor first.
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How long does a 60-capsule bottle last?+
At the recommended intake of one capsule per day, a 60-capsule bottle lasts roughly two months. That makes it easy to plan the concentrate into a daily routine.
Responsible person (GPSR, EU 2023/988) & manufacturer: Alexander Eigl · Hauptstraße 20a · 8502 Lannach · Austria · +43 660 810 8018 · office@optiolex.com
