What Is Quercefit®? Is It Really The Top Quercetin Supplement?

What Is Quercefit®?

Quercefit® is a highly-studied form of phytosome quercetin, which is a flavonoid. Okay, that’s a lot of scientific jargon. Here’s what it means in plain speak: Quercefit® is a powerful antioxidant that is formulated in a way to make it 20 times more bioavailable than regular quercetin supplements (1). It is made from the extract of a flower called Sophora japonic L.3 (2).

Benefits Of Quercefit®

The list of Quercefit® benefits is extensive. From the brain, to the gut, to cells throughout the body, Quercefit® seems to do it all (3). Its benefits affect the brain and its neuroprotective functions may help to bolster cognitive function, including memory and learning (3). It may also be able to regulate physical and mental stress response as well as support serotonin and dopamine synthesis to reduce anxiety (4), (3).


Quercetin is a potent antioxidant and anti-inflammatory. It has been shown to offer numerous health benefits, including immune system support, improved cardiovascular health, reduced inflammation, and allergy relief. Quercefit® contains a highly concentrated and bioavailable form of quercetin, making it one of the most effective and potent quercetin supplements available.

Immune system

One of the primary benefits of Quercefit® is its ability to support the immune system. Studies have shown that quercetin can help enhance the function of immune cells, such as T cells and natural killer cells, and reduce inflammation (5). This can help the body fight off infections and protect against disease.


Quercefit® also has beneficial effects on cardiovascular health. It can help reduce blood pressure, improve circulation, and lower the risk of heart disease (6). Quercetin is also known for its anti-inflammatory effects, which can help reduce inflammation in the arteries.


In addition, Quercefit® may provide relief for allergies and asthma (7, 8). Quercetin can help stabilize mast cells, which release histamine and other inflammatory molecules in response to allergens. This can help reduce allergy symptoms such as runny nose, itching, and hives.

Gut Health

Quercefit® may also benefit gastrointestinal health. It has been considered a prebiotic, meaning that it helps to nurture the colonies of good bacteria in the gut (9). Additionally, it’s anti-inflammatory effects also apply to reducing intestinal inflammation, which can improve gut health.


Overall, Quercefit® is an excellent supplement for anyone looking to support their immune system, improve cardiovascular health, and reduce inflammation. Its potent and bioavailable formula sets it apart from other quercetin supplements, making it a top choice for those seeking the maximum benefits from this powerful antioxidant.

Side Effects Of Quercefit®

Quercefit® is generally considered safe in dosages of up to 1 gram per day (10). However, as with any supplement, it should be taken under the guidance of a qualified doctor who understands your health condition. Side effects include the potential for headaches or upset stomach.

What Sets Quercefit® Apart From Other Quercetin Supplements?

When it comes to choosing a quercetin supplement, it can be overwhelming to sift through the vast selection of products available. However, Quercefit® stands out from the rest for several reasons.

First and foremost, Quercefit® uses a patented technology called Phytosome®. This technology helps to enhance the absorption and bioavailability of quercetin in the body. Studies have shown that this technology increases the absorption of quercetin by up to 20 times compared to other supplements (2). This means that Quercefit® can deliver more quercetin to your body in a shorter amount of time.

Another unique aspect of Quercefit® is that it is made from a natural, plant-based source of quercetin. Other supplements may use synthetic forms of quercetin, which can be less effective and potentially harmful to the body. Quercefit® is derived from a Japanese pagoda tree, which is a natural source of quercetin that has been used in traditional medicine for centuries.

Does Approved Science® Sell Quercefit®?

Quercefit® is a key ingredient in our Respirasyl™ supplement which is scientifically formulated to improve lung and respiratory health. This highly effective form of quercetin helps to regulate histamine levels and reduce inflammation in the respiratory tract while Vitamin C and Citrus Bioflavonoids fight against toxins through their antioxidant effects. Additionally, Respirasyl™ contains Beta-Glucans and Vitamins A, C, and D for strengthening the immune system as well as Nettle Leaf and Butterbur for targeting allergic responses.

To learn more about Respirasyl™, check out our post titled Respirasyl™ Reviews.

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