- 100% premium grape seed extract
- High-dose OPC: 300mg pure OPC per capsule (di- to polymers)
- Pure OPC content confirmed with the most reliable HPLC test method by TU Braunschweig
- Content of di- to pentamers 11.7%
- Content of di- to tetramers 9.96%
- Only from white Chardonnay grapes from France as a natural premium OPC source
- Guaranteed minimum content of 95% total polyphenols
- High-purity extract made only from water and food-grade ethanol, therefore no chemical residues (such as methanol, ethyl acetate, acetone, N-hexane)
- Vegan, non-GMO, gluten-free, soya-free
OPC 300
Grape Seed Extract
Our ultra pure and high-dose OPC 300 contains a full 300mg of OPC per capsule, derived from French Chardonnay grape seeds. OPC content guaranteed by HPLC testing at TU Braunschweig. Ultra pure extraction process using only water and food-grade ethanol. Vegan, no additives. 240 capsules.
- Natural source: 100% Chardonnay grape seeds from France
- Highly dosed: a full 300mg of pure OPC content per capsule
- Premium grape seed extract with 95% total polyphenol content
- OPC content confirmed by HPLC laboratory test (University of Braunschweig)
- Contains bioactive OPC di- to pentamers
- High purity extraction process: gentle extract only from water food-grade ethanol
- No use of solvents like methanol, ethyl acetate, acetone or N-hexane
- Vegan, gluten-free, non-GMO
£19.90
Premium Bioactive Ingredients
How are we different?
Our OPC 300 capsules are 100% extracted from the seeds of French Chardonnay grapes, which are considered the best source of natural OPC. The quality of different OPC products differs enormously, as the actual content of OPC varies greatly. Conventional tests such as the DMAC and vanillin tests provide misleading and far too high OPC values here, which are sometimes 400% higher than the actual OPC content. Only HPLC controls can confirm the true OPC content.
Our OPC 300 has been tested by the TU Braunschweig for its actual OPC content and the test results are published by us in their entirety. Our grape seed extract from French Chradonnay grapes has a pure content of at least 95% polyphenols. Many manufacturers confuse this with the actual OPC content. According to the manufacturer of our raw materials, this content is 77.6%. We were able to confirm this value with an HPLC laboratory test broken down into mono-, di-, tri-, tetra-, penta- and polymers, the most reliable measuring method, carried out by the Technical University of Braunschweig: minus the monomers not counted as OPCs, the OPC pure content was around 77.5%. For the di- to pentamers, which are relevant according to the strict interpretation, the content was 11.7%.
In contrast to other products, our OPC 300 is extracted completely without solvents, using only water and edible ethanol. This allows us to achieve a highly pure OPC concentrate that has never been in contact with common chemical solvents such as N-hexane. All products are guaranteed free of additives such as maltodextrin or peanut powder, which are added by many manufacturers for cost reasons but do not have to be declared.
For the capsule shells, we use special HPMC capsules, which, unlike most other HPMC or Pullulan capsules on the market, are manufactured 100% without the auxiliary substances carrageenan and PEG, which do not have to be declared. For packaging, we use light-protected and environmentally friendly amber glass instead of plastic.
Our commitment to uncompromising quality & purity:
- Premium active ingredients as pure isolates & directly sourced from leading global producers
- All formulations crafted exclusively from selected individual raw materials
- Our commitment: zero unnecessary additives, technical excipients or chemical extraction agents
- Voluntary declaration of all non-mandatory ingredients
- Where additives are necessary, preference is given to valuable natural ingredients
- Capsule shells 100% free from carrageenan & PEG
- Systematic quality testing conducted by independent laboratories
- Packaged in amber glass or premium aroma-protective zipper bags designed to protect against oxidation & contaminants
- All products 100% free from: magnesium stearate, nanoparticles (without legal exceptions), GMOs, artificial colours & flavours, titanium dioxide
- Added sugar & sweeteners: used only where required for functional or product-specific reasons
OPC
OPCs (Oligomeric Proanthocyanidins, also called vitamin P) are a group of substances belonging to the flavonols, which consist of polymers of catechins and epicatechins. Proanthocyanidins are present in a whole range of fruits and plants, including the seeds and skins of grapes, in berries and citrus fruits, but also in the protective bark layer of trees.
The various proanthocynidins are categorised by their number of units (e.g., monomer for one unit, dimer for two). The exact definition of OPC is unclear and may include only di- to tetramers, di- to pentamers, di- to hexamers, or even all proanthocyanidins except monomers.
For a long time, only the dimers, i.e., consisting of two, and the trimers, consisting of three units, were considered to be bioactive. However, this has since been disproven, allowing a complex interaction of all components of the grape seed extract (including the polymeric proanthicyanidins such as hexamers and heptamers) to be used. OPC compounds are contained in large quantities, especially in pine bark and grape seeds, in which the individual proanthocyanidins differ from each other both in form and in their effect. There is also a notable amount of vital proanthocyanidin-B3-3'-O-gallate in grape seed extract.
Dosage
Directions
Take 1 capsule (300mg OPC) with 200ml of water before a meal.
Food Supplement
Do not exceed the recommended daily intake. Food supplements are not a substitute for a balanced, varied diet and healthy lifestyle. Keep out of reach of young children.
Storage
Store in a cool, dry place away from direct sunlight and heat.
Contents
Ingredients: Capsule Shell (Hydroxypropyl Methylcellulose), Grapeseed Extract (Vitis vinifera L.).
Contains: 240 capsules
| Nutrition Information per Capsule | %NRV* | |
| Grape Seed Extract | 400mg | ** |
| of which OPC | 300mg | ** |
* Nutrient Reference Value
** no NRV established
Per capsule: 300mg OPC
Per jar: 72,000mg OPC
vegan
lactose free
gluten free
soya free
non-GMO
only one ingredient
amber glass
free from carrageenans & PEG
cruelty free
made in the EU
no additives
high-quality manufacturing
True Clean Label
Product Details
| Origin | Water-ethanol extraction of French Chardonnay grape seeds |
| Production | In-house production in Europe, bottling and encapsulation in the EU according to HACCP, GMP / ISO 22000:2018 standards Finished products packaged in amber glass jars, and stored in non-toxic containers Shipping in mineral oil-free boxes |
| Capsules | Plant-based cellulose (HPMC). Vegan Premium HPMC quality: Free from controversial additives such as carrageenans and PEG |
| Packaging | Amber glass to protect against light and oxidation (free from plasticisers and BPA). |
| To Reuse | Remove product label by soaking the jar in warm water for 5 minutes. Glue residue can be removed with dish soap. |
Laboratory Tests
The purity of our formulas is important to us. This is why we have both our raw ingredients as well as our finished products extensively tested by independent laboratories to confirm purity and active ingredient content. Here, we have provided the results of some of the tests carried out on this product.
Sunday Natural
Our philosophy
For thousands of years, cultures all over the world have been using a variety of plants and nutritious foods to naturally foster vitality and good health.
With our products, we try to emulate this ancient wisdom as much as possible.
Consequently, our philosophy is simple: we strive to meet the highest standards of quality and purity in every product we produce, with a focus on organic and natural ingredients.
We follow this philosophy with meticulous care on all levels, down to every last detail.