Vitamin C Complex
Ultra Bioflavonoids

From 5 Sources + Flavonoids

Vitamin C in the form of a multi-spectrum complex with bioflavonoids. Supplies vitamin C in a variety of natural chemical forms for ideal synergy & bioavailability: Vitamin C Ultra (PureWay-C®) in combination with berry polyphenols (Polyphenol-C®), plus a bioflavonoid complex (quercetin, rutin, OPC from grape seed and pine bark extract) and citrus bioflavonoids (hesperidin, apigenin, naringin and naringenin), embedded in a phytochemical matrix of natural sources of vitamin C. 400mg of vitamin C per capsule. Gluten, lactose, soy and gelatine free. Vegan, non GMO. 100 capsules
  • Unique, multi-spectrum complex: 5 different sources of vitamin C, plus bioflavonoids
  • Our Vitamin C Ultra (PureWay-C®): vitamin C combined with plant-based fatty acids and a citrus bioflavonoid complex
  • Includes Polyphenol-C®: vitamin C with berry polyphenols
  • Plus: powdered acerola, camu camu and rosehip, fruits naturally rich in vitamin C
  • 400mg of vitamin C per capsule
  • With a bioflavonoid complex (quercetin, rutin & OPC) and citrus bioflavonoids (hesperidin, apigenin, naringin & naringenin)
  • Vitamin C supports energy metabolism, the immune and nervous systems and normal mental function
  • Protects cells against oxidative stress and increases iron absorption
  • Contributes to normal collagen formation (blood vessels, bones, cartilage, teeth, gums, skin)
100 capsules

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€173.87 / 1kg
In stock

Premium Bioactive Ingredients

  • Our Vitamin C Ultra in a synergistic complex of bioflavonoids and polyphenols
  • Vitamin C from the active ingredient PureWay-C®: vitamin C combined with 3% plant-based fatty acids and 4% citrus bioflavonoids
  • Increased absorption and tolerability as well as retention in the blood
  • Includes Polyphenol-C®: vitamin C with berry polyphenols
  • Plus: powdered acerola, camu camu and rosehip, fruits naturally rich in vitamin C
  • With the addition of quercetin, rutin, OPC and the citrus bioflavanoids hesperidin, naringin, apigenin and naringenin
  • Rich phytochemical matrix with a broad spectrum of natural antioxidants, each with its own effect profile
  • High-dose vitamin C: 400mg per capsule
  • Natural synergistic effect: better bioavailability and increased recycling due to bioflavonoid complex
  • Acerola powder in the form of pure, freeze-dried juice from Brazil, derived from whole acerola cherries and with 30% vitamin C
  • 100% natural and pure camu camu powder (with seeds): raw and sourced from Peru
  • Citrus bioflavonoid complex with hesperidin, naringin, apigenin and naringenin from ultra-pure water and ethanol extracts
  • The bioflavonoids quercetin and rutin from pure water extracts of Sophora japonica flowers
  • OPC complex from Chardonnay grape seed extract and wild pine bark extract, rich in bioactive OPC, catechins and taxifolin
  • With berry polyphenols from blueberry, raspberry, strawberry, blackberry, cranberry and grape
  • All powdered fruit and berries cultivated without the use of plant protection products
  • Ultra-pure, vegan capsule shells made from plant-based cellulose (HPMC), free from PEG and carrageenans

How are we different?

Vitamin C does not occur in nature as an isolated compound. It is always integrated into a rich matrix of various polyphenols and other phytochemicals, which not only support the recycling of vitamin C and exert a synergistic effect through their antioxidant properties but also increase the bioavailability and retention of vitamin C.

Vitamin C Complex Ultra Bioflavonoids supplies vitamin C in a uniquely rich, multi-spectrum complex. The combination of powdered acerola cherry, camu camu and rosehip, and their full phytochemical profiles, with vitamin C from the active ingredients PureWay-C® and Polyphenol-C®, together with the plant-based fatty acids, citrus bioflavonoids and berry polyphenols from grape, raspberry, blackberry, strawberry and cranberry, creates a unique vitamin C complex. Quercetin, rutin and OPC from grape seeds and pine bark are known for their synergy with vitamin C, but less well-known phytochemicals, such as the citrus bioflavonoids hesperidin, naringin, apigenin and naringenin, also support the effects of vitamin C.

All the plant-based sources of vitamin C (acerola, camu camu and rosehip) in this complex are cultivated without the use of plant protection products. The acerola, camu camu and rosehip powders are ground from the whole fruits. The quercetin, rutin and OPC come from ultra-pure extractions using only water or water and food grade alcohol (there is no use of any additional solvents).

Another factor influencing the quality of vitamin C supplements is the source of the vitamin itself; high-dose vitamin C is obtained almost exclusively from corn and citrus fruits, the quality of which can vary. It is therefore important to us to ensure that the raw material is sourced exclusively from non-GMO corn. This raw material, through the highly innovative and modern PureWay-C® manufacturing process conducted according to the highest quality standards, is transformed into our concentrated active ingredient—and contains no trace of corn, fructose or any chemical solvent residues.

The active ingredient Polyphenol-C® is a premium vitamin C complex consisting of vitamin C in combination with polyphenols (standardised to 10%) from a wide range of fruit and berry powders and extracts (blueberry, grape, raspberry, blackberry, strawberry and cranberry). This premium active ingredient has been modelled on nature: vitamin C naturally occurs in fruits and berries with anthocyanins, proanthocyanidins and bioflavonoids as natural cofactors.

For the capsule shells we use custom-made HPMC capsules that, unlike most other HPMC and pullulan capsules on the market, are 100% free from controversial additives such as carrageenans and PEG. We then package this product in environmentally friendly amber glass.


  • Premium active ingredients in their purest form
  • Sourced directly from the world’s best producers
  • Our select raw materials are the basis of all our formulations
  • Complete avoidance of all unnecessary additives and adjuvants
  • Exclusive use of valuable natural ingredients for additives
  • We voluntarily declare all ingredients
  • All extractions performed without the use of chemical solvents
  • Custom production when necessary, in order to achieve the highest possible level of purity
  • Independent laboratory testing available on product pages
  • Raw materials sourced only from premium suppliers who are committed to fair working conditions
  • Amber glass and compostable pouches used for packaging
  • Vegan capsule shells, free from PEG and carrageenans
  • Packaged in the EU according to HACCP, GMP and ISO 22000:2018 standards
  • Stored in non-toxic containers
  • Shipped in mineral oil-free boxes
  • All products guaranteed 100% free from magnesium stearate, silicon dioxide, nanoparticles (no legal opportunism), genetic engineering, artificial colours and flavours, titanium dioxide and added sugar & sweeteners


Vitamin C is involved in numerous redox reactions as an antioxidant and cofactor, thus influencing numerous processes in the human body, such as energy metabolism and the immune system, and providing antioxidative protection to cells. It is also involved in the formation of collagen, the structural protein found in skin, cartilage, bones and blood vessels, as well as in the synthesis of hormones.

High concentrations of vitamin C are found naturally in fresh fruits, vegetables and berries such as camu camu, sea buckthorn berry, acerola cherry, rosehip, black currant, kale, parsley, kiwis and citrus fruits, among others.

The role of vitamin C in the body remains an active area of research. Almost every year, new mechanisms of action are discovered for this fascinating vitamin. The following statements regarding vitamin C are provided by the EU:

Health Benefits of Vitamin C

According to the European Food Safety Authority (EFSA), Vitamin C contributes to:

  • The reduction of tiredness and fatigue
  • Normal mental function
  • The regeneration of the reduced form of vitamin E
  • Normal energy metabolism
  • Normal immune system function
  • The normal function of the nervous system
  • Protecting cells against oxidative stress
  • Normal collagen formation for normal blood vessel function
  • Normal collagen formation for normal bone function
  • Normal collagen formation for normal cartilage function
  • Normal collagen formation for normal dental function
  • Normal collagen formation for normal gum function
  • Normal collagen formation for normal skin function
  • Increasing iron absorption
  • Maintaining normal immune system function both during and after intense physical activity

Synergy with Bioflavonoids

Bioflavonoids are the most common type of phytochemical. These important compounds are found in vegetables, fruits and herbs and are responsible for, e.g., the vibrant colour of blueberries and of dark leafy vegetables. Bioflavonoids have strong antioxidant properties; to support the natural synergy between vitamin C and bioflavonoids, our vitamin C complexes contain a broad spectrum of valuable bioflavonoids from citrus fruits, berries and superfoods which themselves are also rich in vitamin C.


Our acerola is sourced from Brazil. It is gently freeze dried immediately after harvest and then milled into a natural fruit powder without the addition of controversial carrier materials such as maltodextrin. Acerola cherries are known for their exceptionally high vitamin C content (approximately 1,700mg/100g fresh).

Camu Camu

The small, yellowish red camu camu fruit (Myrciaria dubia) grows wild in the Peruvian Amazon. The fruity and sour, slightly bitter berries are among the most vitamin C-rich foods on earth, with roughly 40 times the vitamin C of an orange. The dried berry can reach up to 13–14% vitamin C.


We source our premium rosehip powder from Chile, where the variety of rosehip (Rosa canina L.) richest in bioactives thrives. The wild bushes grow slowly under the harsh climatic conditions in the south of Chile, at an altitude of 800m. This slow growth fosters the development of a uniquely high quality fruit. Hildegard von Bingen considered rosehip to have special healing properties.

Rutin and Quercetin

Yellow-coloured rutin as well as quercetin are bioflavonoids. Rutin is the glycosidic compound of quercetin, supplemented by the disaccharide rutinose. Like all flavonoids, rutin and quercetein have antioxidant properties, which is why plants increase their production of them under certain conditions: they need rutin and quercetin for colour and protection, e.g., to protect themselves against UV rays or environmental influences. The blossoms of the Japanese cord tree (Sophora japonica), from which we extract our rutin and quercetin, are particularly rich in these secondary phytochemicals.

OPC Complex

OPC (short for oligomeric proanthocyanidins), also known as vitamin P, are a group of flavonols consisting of polymers of catechins and epicatechins. OPCs are found in high concentrations in grape seeds and pine bark, each of which also contain other valuable phytochemicals. The individual proanthocyanidins contained in each differ in both form and effect. Grape seed extract contains significant quantities of the important proanthocyanidin B3-3-O-gallate, while pine bark extract contains taxifolin. Together, the extracts offer the full spectrum of the OPC group.


Recommended Dosage

Take 1 capsule (400mg vitamin C) daily.

Daily Requirements

The German Nutrition Society (DGE) recommends an intake of 100mg vitamin C per day. The recommended daily intake according to the European Food Safety Authority (EFSA) is 80mg.

Vitamin C should be divided into several portions throughout the day, as the body can only absorb a limited amount into its tissues at once before they reach saturation and because blood levels of the vitamin drop relatively soon after ingestion.

Food Supplement

Do not exceed the recommended dose. Food supplements cannot replace a balanced and varied diet. Keep out of reach of children. Not suitable for children, adolescents or individuals who are pregnant or breastfeeding.


Store in a cool, dry place away from direct sunlight and heat.


Ingredients: Vitamin C (PureWay-C®), Acerola Powder*ᛡ, Camu Camu Powder*, Rosehip Powder*, Polyphenol-C®, Pine Bark Extract⥉, Grape Seed Extract, Sophora japonica Extract (with quercetin), Sophora japonica Extract (with rutin), Citrus Bioflavonoidsᚯ, Bitter Orange Extract, Grapefruit Extract, Citrus Extract.
Capsule shells: Hydroxypropyl Methylcellulose.
Contains: 100 capsules

Nutrition Information per Capsule % NRV**
Vitamin C (from Acerola*, Camu Camu*, Rosehip*, PureWay-C®, Polyphenol-C®) 400mg 500%
Acerola Powder*ᛡ 75mg -***
Camu Camu Powder* 75mg -***
Rosehip Powder* 50mg -***
Citrus Bioflavonoid Complexᚯ    
    of which hesperidin 25mg -***
    of which naringin 15mg -***
    of which apigenin 2.5mg -***
    of which naringenin 2.5mg -***
Berry Polyphenols 5mg -***
Quercetinᚯ 25mg -***
Rutinᚯ 25mg -***
OPC (Grape Seed Extract, Pine Bark Extract⥉) 50mg -***

* cultivated without the use of plant protection products
** Nutrient Reference Value
*** no NRV established
ᛡ freeze dried ᚯ naturally sourced ⥉ wildcrafted

Product Details

German Pharmaceutical Number (PZN) 17873212
Origin PureWay-C®
Production In-house production in Europe, bottling and encapsulation in the EU according to HACCP, GMP and 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 jar 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.

Sunday Natural

Our Philosophy

For thousands of years, cultures all over the world have been using medicinal plants and nutritious foods to naturally foster and maintain vitality and good health.

With our products, we try to emulate this ancient wisdom as much as possible.

Consequently, our philosophy is simple: everything we do meets the highest standards of quality and purity; our focus is on organic and natural ingredients.

We follow this philosophy with meticulous care on all levels and down to every last detail.

Learn more.

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