Biogena Exceptionals

Quercetin Phytoactive Gold

Up to 20x higher 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
  • 100% vegan
€40.90
€0.68 / caps.
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This product fits to these categories

Convenient capsule formConvenient capsule form
For daily supplementationFor daily supplementation
Gluten-freeGluten-free
Lactose-freeLactose-free
VeganVegan

Quercetin Phytoactive Gold in detail

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.

What our customers say 

Moderne Kunstgalerie mit zeitgenössischen Sitzgelegenheiten, abstrakten Porträts an den Wänden, warmer Beleuchtung und einer Mischung aus Holz- und Metallelementen in der Dekoration.

100% Clean Label – no hidden extras

At BIOGENA, transparency isn’t just a promise – it’s our everyday practice. We follow the pure substance principle: 100% quality, mostly free from colorants, preservatives, and technical additives. The result? Outstanding tolerability (97%) and a recommendation rate of 95% – confirmed by over 30,000 doctors, therapists, and more than half a million customers.

  • EVERY batch: independently tested

  • Active ingredient content – guaranteed

  • 100% free from artificial colors/flavors, titanium dioxide, GMOs, nanoparticles, magnesium stearate

  • In-house production in Salzburg (BIOGENA Good Health World)

  • Premium raw materials sourced directly from global market leaders

Person, die an einem reflektierenden Strand mit klarem Himmel und fernen Bergen läuft und Fußabdrücke im nassen Sand hinterlässt.

What sets us apart

For us, knowledge is more than just information – it’s inspiration. We aim to make health tangible, share what we know, and pass on our passion for it. At the same time, we act with responsibility for our environment – with conviction and heart.

  • Independent family business, led by founder Dr. Albert Schmidbauer

  • 100% Austrian science in every product

  • Handcrafted production – uncompromising since 2006

  • Eco-friendly packaging in the BIOGENA GreenPE bottle

  • Research & development at the highest level – with the largest scientific team in the industry

  • Double Climate Positive

Ein Arbeiter in Schutzausrüstung gießt eine Substanz in einen großen Industriekessel in einer hellen, modernen Einrichtung.

Production of our premium supplements

At BIOGENA, quality knows no compromises. From raw material sourcing to research and development, all the way to our in-house manufacturing at BIOGENA Good Health World in Koppl near Salzburg – every step is transparent and traceable.

  • Brand-name raw materials with certified quality seals

  • EVERY batch independently tested by the German LEFO Institute

  • Certified according to FSSC 22000

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FAQs

FAQs

Uncompromising quality

  • Austrian Science Gold
  • LEFO seal gold
  • Quercefit
  • Vcaps Plus
  • Vegan Gold
  • Phytosome

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