Quercetin Phytoactive Gold Quercetin Phytoactive Gold

Quercetin Phytoactive Gold

20 x better bioavailability thanks to patented Phytosome® technology
With the branded raw material Quercefit®
Quercetin from a purely plant-based source...
the Japanese string tree (Sophora japonica)
Raw material examined in a clinical study
(€0.65 / caps.)
Plus shipping costs
Ready for immediate shipment

Quercetin - King of the flavonoids
The flavonoid quercetin is widespread in the plant kingdom and is mainly found in the coloured skins of red onions, apples, grapes or even capers. Flavonoids are a very prominent group within the polyphenols, which are considered to be very valuable plant constituents. Quercetin is often called the "king of flavonoids". This royal attribute is no coincidence, as the much sought-after flavonoid is the focus of recent research with promising results. Quercetin Phytoactive Gold contains quercetin as an active ingredient in the usual radical Biogena quality.

Patented phytosome technology enables optimal availability
The secret of Quercetin Phytoactive Gold lies in the Italian branded raw material Quercefit® and its very special production method: The valuable flavonoid is not present here in free form, but is encased in phospholipids from the sunflower. This technological innovation on a plant basis - patented as Phytosome® technology - enables the contained quercetin to be absorbed particularly well by our body. The optimal bioavailability of quercetin in the form of Quercefit® was clearly demonstrated in a clinical study. The basis of the unique raw material is the most popular source of quercetin, the Japanese cord tree (Sophora japonica).

Quercetin Phytoactive Gold - a state-of-the-art product with an innovative raw material at the cutting edge.

Download Product information

This product should not be consumed by pregnant and breastfeeding women, by children and adolescents.

Not an organic product according to VO (EU) 2018/848.

Suitable for diabetics. The information provided here is not a statement on healing or a recommendation to self-medicate. Quercefit® and Phytosome® are trademarks of Indena S.p.A., Italy. Vcaps® Plus is a trademark of Lonza or its affiliates, registered in the USA.  Subject to print or typographical errors. Version: 03.03.2022.

Store in a dark, dry place at room temperature. Protect from heat. Keep out of reach of children.

High proportion of natural ingredients

Well tolerated

Produced according to the pure substance principle

Optimal absorption

Support during increased load

Recommended consumption

1 capsule daily in the morning and 1 capsule in the evening taken with a meal and plenty of liquid.

Food supplement: The recommended daily dosage should not be exceeded. No substitute for a balanced and varied diet and a healthy lifestyle.

Package size

60 capsules (1-month supply), 37 g

Potential applications

• For the targeted supply of quercetin


per capsule

daily dose 2 capsules

% NRV*

Quercetin-phospholipid (Quercefit®)275mg550 mg-
containing: quercetin110mg220 mg-
containing: sunflower lecithin110mg220 mg-


Quercetin-phospholipid [quercetin (from Sophora japonica), sunflower lecithin, maltodextrin], bulking agent: powdered cellulose, hydroxypropyl methyl cellulose (capsule shell).

100% Clean Label - without hidden additives = pure substance principle

BIOGENA is committed to transparency, honesty and responsibility, far beyond the legally required full declaration of all ingredients. We focus on 100% quality with the pure substance principle. All our micronutrient preparations are guaranteed to be pure and free from colourings, preservatives and technical additives. This leads to maximum tolerability (currently 97%) and active recommendation (currently 95%) by over 18,000 doctors and therapists and over half a million customers.

Independent laboratory tests for each individual batch
Guaranteed content of active ingredients
100% WITHOUT artificial colours and flavours, WITHOUT titanium dioxide, WITHOUT genetic engineering, WITHOUT nanoparticles, WITHOUT magnesium stearate
Own production in the BIOGENA Good Health World, Salzburg (Austria)
Premium brand raw materials - sourced directly from the world market leaders

What sets us apart

We want to create, share and increase knowledge and infect others with our enthusiasm for health. At the same time, the responsible treatment of our environment is a matter close to our hearts.

Independent family business with founder Dr Albert Schmidbauer as CEO
100% Austrian science in our preparations
Consistent pure substance principle since 2006
Environmentally friendly packaging in the BIOGENA eco-tin
State-of-the-art research and development by the largest scientific team in the industry
Double Climate Positive

Production of our premium preparations

When it comes to quality assurance, we at Biogena make no compromises. In the production of our micronutrient preparations, we always pay attention to the highest standards - for complete traceability and a fully transparent value chain: from raw material sourcing and product development through studies and application monitoring to state-of-the-art in-house production, logistics and shipping to over 60 countries around the world.

  • Careful in-house production to a unique manufacturing standard at BIOGENA Good Health World in Koppl near Salzburg, including show production
  • High-quality and sustainable branded raw materials labelled with test and quality seals
  • Each individual batch undergoes the strictest quality tests by the German LEFO Institute Dr Wichmann, where experts independently assess parameters such as impurities, pesticides and heavy metals 
  • Certified according to ISO 22,000:2018, GMP - Good Manufacturing Practice, BIO certification, Halal certification, Kosher certification
  • Use of the purest capsule shells in the world: Vcaps® Plus and DRcaps® are purely plant-based capsule shells made from hydroxypropyl methylcellulose and nothing else.

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At Biogena, “pure substance principle” means that we do not use technological additives which are used for the fully automated manufacturing of tablets, capsules and pills (e.g. anticaking or release agents and so forth) or additives that are used for optical reasons or for enhancing the taste of the products (artificial aroma, colouring agents, coatings etc.). Due to a semi-automatic manufacturing process, we can avoid these substances that often have a higher proportion in customary products than the actual active ingredients. In the case of nutritional supplements, additives have to be indicated in the list of ingredients. Here, the patient or customer can get useful information. Concerning the single ingredients, we also care for our raw materials to be free of carrier substances. In cases where this is not possible, we use natural food components such as maltodextrin, cellulose powder or calcium carbonate. The majority of our ingredients is produced exclusively for us – free of carrier substances (e.g. our enzymes our probiotics: other manufacturers often use lactose as a carrier – the product batches produced for us are explicitly without carriers).

Biogena cooperates with respected physicians and therapists in many different countries. With them, you are in good hands. You can also buy our products from our Biogena stores in Vienna, Linz, Salzburg, Graz, Natternbach, Freilassing and Frankfurt (Germany) as well as online at www.biogena.com.

BIOGENA preparations are carefully manufactured in our own production facility, BIOGENA Good Health World (Salzburg, Austria), to a unique manufacturing standard. We are certified according to ISO 22,000:2018 and GMP - Good Manufacturing Practice and have organic, halal and kosher certification. The quality-tested raw materials come from premium brand raw material manufacturers - sourced directly from the world market leaders.

Crompomissless quality