OPC Grape Seed Extract — high-dose with 250 mg OPC per capsule
Optiolex OPC grape seed extract delivers 500 mg of concentrated grape seed extract per capsule, of which 250 mg is oligomeric proanthocyanidins (OPC) — combined with natural Vitamin C from Camu-Camu. Vegan, gluten-free and carefully processed. Just one capsule a day.
- 250 mg OPC per capsule
- With natural Vitamin C
- 100 % vegan
- Austrian brand
What is OPC grape seed extract?
OPC stands for oligomeric proanthocyanidins — a group of secondary plant compounds from the polyphenol family, more precisely from the flavanol subgroup. The main source is the seeds and skins of red grapes.
Chemically, OPC usually consists of two to four linked catechin units (dimers and trimers). Depending on molecule size, we speak of OPC (oligomeric) for small molecules, MPC (monomeric) or PPC (polymeric) for larger building blocks. The oligomeric form is considered particularly interesting for food supplements.
Grape seeds are among the most concentrated natural sources. In everyday life, however, the intake via food is limited — the relevant plant compounds are mostly found in the skin, seeds and dark pigments of red fruits. Optiolex provides 500 mg of grape seed extract with 250 mg of OPC per capsule and combines this with natural Vitamin C from the Camu-Camu fruit.
OPC occurs naturally in …
1948 — the year OPC was discovered. The Roman numeral XLVIII on the Optiolex label refers to this year.
A French chemist, peanuts and coincidence
In 1948, the French researcher Jacques Masquelier at the University of Bordeaux was investigating a practical question: are the reddish-brown skins of imported peanuts usable as animal feed — or are they toxic?
In his investigations, he discovered a previously unknown group of plant compounds — which he named oligomeric proanthocyanidins, or OPC for short. Later, he demonstrated that the same compounds also occur in high concentrations in grape seeds and red grape skins. Masquelier developed the first standardised extraction procedure and thus laid the foundation for the modern use of OPC as a food supplement.
Today, OPC from grape seeds is researched scientifically around the world — one starting point of the work that began more than 75 years ago in a Bordeaux laboratory.
6 reasons for Optiolex OPC grape seed extract
Why Optiolex is a thoughtful choice among OPC supplements.
250 mg OPC per capsule
High-dose grape seed extract with 500 mg extract per capsule — of which 250 mg OPC. Standardised, transparent declaration.
With natural Vitamin C
12 mg Vitamin C from Camu-Camu extract (15 % of NRV). Vitamin C contributes to the protection of cells from oxidative stress.
100 % vegan & pure
Plant-based capsule shell from cellulose. No gluten, lactose, sugar, colourings or preservatives. Suitable for plant-based diets.
Only 1 capsule a day
Easy to integrate into daily life: one capsule with plenty of liquid — done. The 60-capsule tin lasts for two months.
Scientifically researched
Grape seed OPC is examined in current peer-reviewed publications — e.g. in the journal Antioxidants (2023 & 2025). Sources below.
Optiolex from Austria
Austrian brand by Alexander Eigl in Lannach (Styria). Careful filling in a German manufactory, GMO-free, without artificial additives.
Optiolex OPC vs. standard grape seed extract vs. pure Vitamin C
Why the combination of OPC and Vitamin C is interesting — and what to look for when comparing OPC supplements.
| Feature | Optiolex OPC | Standard OPC | Pure Vitamin C |
|---|---|---|---|
| OPC content per capsule | 250 mg | 50–200 mg | none |
| Natural Vitamin C included | ✓ Camu-Camu | usually not | synthetic or natural |
| Vegan & gluten-free | ✓ | varies | varies |
| Additives (colours/preservatives) | none | partly | partly |
| Brand origin | Austria | varies | varies |
| Daily dosage | 1 capsule | 1–3 capsules | 1–2 tablets |
This comparison serves as general orientation; specific values for other products vary by manufacturer and formulation.
Optiolex OPC grape seed extract suits you if …
OPC capsules are one building block for a mindful, plant-rich diet. Typical users:
Plant-based diet
You follow a vegan or vegetarian diet and want to supplement your intake of secondary plant compounds from grape seeds.
Active & sporty
You exercise regularly and rely on a well-thought-out nutrient supply around training and everyday life.
High daily demands
Work, family, too little sleep — phases of increased demands are a typical reason for mindful supplementation.
40+ and mindful
As you get older, you pay more attention to a plant-rich diet and a conscious approach to vital nutrients.
Nature-oriented lifestyle
You prefer products without artificial additives, with clear declarations and traceable origins.
Quality & origin matter
You value an Austrian brand, filling in Europe and tested raw materials over cheap imports.
How to take Optiolex OPC correctly
OPC capsules are easy and straightforward to integrate into your daily routine. Here are the key points in brief.
- Ideally in the morning on an empty stomach, about 30 minutes before breakfast.
- If you have sensitive digestion, take it with a meal.
- Do not consume simultaneously with dairy products — calcium may impair absorption.
- Pairs well with a Vitamin C-rich drink such as orange juice.
- Store in a dry place at room temperature, protected from light and heat.
Who should consult a doctor first?
If you take medication (especially blood thinners), are pregnant, breastfeeding or suffer from chronic illnesses, discuss the use of OPC supplements with your doctor beforehand.
In the case of a grape allergy, avoid this product. The product is intended for adults and should be kept out of reach of small children.
Ingredients per daily dose
Transparent declaration: here's what's in one capsule of Optiolex OPC grape seed extract.
| Ingredient | Per capsule | % NRV* | Function |
|---|---|---|---|
| Grape seed extract (Vitis vinifera) | 500 mg | —** | Plant-based raw material, natural source of polyphenols |
| of which OPC | 250 mg | —** | Oligomeric proanthocyanidins from grape seeds |
| Vitamin C (from Camu-Camu) | 12 mg | 15 % | Contributes to the protection of cells from oxidative stress; supports normal immune system function |
* NRV = Nutrient Reference Value for daily intake according to EU Regulation 1169/2011. ** No daily reference value has been established for this ingredient.
Ingredients
Grape seed extract (Vitis vinifera, of which OPC), Camu-Camu extract (Myrciaria dubia, source of Vitamin C), coconut milk powder, cassava root extract, plant-based capsule shell (cellulose).
Manufacturing & origin
Optiolex is an Austrian brand — launched by Alexander Eigl in Lannach (Styria). The filling takes place in a carefully selected German manufactory known for controlled production standards and tested raw materials. Colourings, preservatives and GMOs are consistently avoided.
Scientific sources
- Nie F. et al.: Oligomeric Proanthocyanidins: An Updated Review of Their Natural Sources, Synthesis, and Potentials. Antioxidants, 2023. PMC10215713
- Mokrani M. et al.: Biombalance — A Specific Oligomeric Procyanidin-Rich Grape Seed Extract as Multifunctional Ingredient. Antioxidants, 2025. PMC12729549
- Weseler A.R., Bast A.: Masquelier's grape seed extract: from basic flavonoid research to a well-characterized food supplement with health benefits. Nutrition Journal, 2017.
Choose your Optiolex OPC pack
Four sizes — from the starter pack to the long-term supply. Bulk discounts already included.
60 capsules
Starter pack
- 1 tin of 60 capsules
- 250 mg OPC per capsule
- Lasts 2 months
- Ideal for getting started
3× 60 capsules
6-month supply
- 3 tins of 60 capsules (180 caps. total)
- Lasts 6 months
- Practical supply size
- Ideal for continuing
6× 60 capsules
12-month supply
- 6 tins of 60 capsules (360 caps. total)
- Lasts 12 months
- Best price-performance ratio
- Our bestseller
10× 60 capsules
Family pack
- 10 tins of 60 capsules (600 caps. total)
- Lasts approx. 20 months
- Maximum bulk discount
- Perfect for families & long-term users
Delivery: 1–3 business days in Austria · EU-wide shipping · Shipping costs depend on delivery country · All prices incl. statutory VAT.
Customer reviews
"Amazing OPC. You have a super price on the OPC. Fast delivery on top."
"Great products at a unique price and very, very fast delivery. Can only recommend."
"Top price-performance ratio. Delivery super fast."
"Top as always! Great range and very good price-performance ratio."
"Excellent quality, fast delivery, great service."
"Fast delivery, interesting magazine as a free extra."
Transparency notice: "Product review" marks a review specifically about Optiolex OPC grape seed extract. "Shop review" marks general reviews of the Viterna shop (collected via Shopauskunft.de) and does not refer specifically to OPC. All displayed reviews are real and verifiable via the linked Shopauskunft page.
FAQ on OPC grape seed extract
The key questions about Optiolex OPC — answered briefly and clearly.
What exactly is OPC grape seed extract?
OPC stands for oligomeric proanthocyanidins — secondary plant compounds from the polyphenol family, flavanol subgroup. They occur naturally in grape seeds, the skin of red grapes, and also in apples, cocoa, green tea, pine bark and peanut skins.
In Optiolex grape seed extract, each capsule delivers 500 mg of concentrated grape seed extract, of which 250 mg is OPC. Such a concentration would hardly be achievable via a normal diet.
Who discovered OPC?
OPC was discovered in 1948 by the French scientist Jacques Masquelier at the University of Bordeaux — originally in the reddish-brown skins of peanuts. Later, he demonstrated that OPC also occurs in particularly high concentrations in grape seeds and red grape skins.
The Roman numeral XLVIII (= 48) on the Optiolex label refers to this year of discovery — a tribute to the origins of OPC research.
How do I take Optiolex OPC grape seed extract correctly?
1 capsule daily with plenty of liquid. Ideally in the morning on an empty stomach, about 30 minutes before breakfast. If your digestion is sensitive, you can take the capsule with a meal.
Simultaneous intake with dairy products should be avoided. Do not exceed the recommended daily dose.
Why is combining OPC with Vitamin C useful?
Vitamin C is an officially recognised antioxidant: it contributes to the protection of cells from oxidative stress and supports normal immune system function. OPC from grape seeds, like Vitamin C, is an important plant compound.
Optiolex combines both components in one capsule: OPC from grape seeds and Vitamin C from the Camu-Camu fruit are absorbed as natural building blocks of a plant-rich diet.
Is Optiolex OPC grape seed extract vegan?
Yes. The capsule shell is made from plant-based cellulose. The product is vegan, gluten-free, lactose-free, sugar-free and contains no animal ingredients. No colourings or preservatives are used.
Are there any side effects or contraindications?
When taking the recommended daily dose, no relevant side effects are documented. Avoid the product in case of grape allergy.
Consultation with your doctor is advisable if: taking blood-thinning medication, pregnancy, breastfeeding or chronic illnesses. The product is designed for adults.
How long can I take OPC continuously?
Optiolex OPC grape seed extract is designed for long-term, daily intake. Many users take OPC over several months as part of their balanced diet.
Check periodically whether the supplement still fits your overall nutrient supply. In case of continuous medication or chronic illnesses, have your intake duration medically supervised.
Where does Optiolex OPC come from?
Optiolex is an Austrian brand — launched by Alexander Eigl in Lannach (Styria). The product is filled in a German manufactory with carefully tested raw materials — GMO-free, without colourings or preservatives.
The brand name "Optiolex" is composed of the Latin optio (free will) and lex (law).
Which pack size should I choose?
1× 60 capsules: Ideal for getting started — lasts 2 months.
3× 60 capsules: A 6-month supply — practical and continuation-friendly.
6× 60 capsules: Our bestseller — 12-month supply with the best price-performance ratio.
10× 60 capsules: Family and long-term pack with maximum bulk discount.
Discover Optiolex OPC today
High-dose OPC from grape seeds, combined with natural Vitamin C. Austrian brand, filled in Germany. Fast delivery in Austria and across Europe.
