What is Quercetin dihydrate (Sophora japonica extract)?

Quercetin dihydrate (Sophora japonica extract) is a plant polyphenol, extracted in Sophora Japonica buds. It can be used as an ingredient in supplements, beverages, or foods.

Like all flavonoids, it demonstrates antioxidant defense by scavenging free radicals and inhibiting oxidation of various molecules. In doing so, it protects against the negative effects of free radicals, such as cell membrane damage, DNA alterations and cell death. By protecting the body against the damage wrought by these free radicals, it can protect against a wide range of health conditions that we will now explore.

Quercetin Dihydrate VS Quercetin

Quercetin formula is C15H10O7+2H2O, Quercetin Dihydrate is the more stringent name of Quercetin, when assay Quercetin content that Anhydrous Quercetin should be included.

How Does Quercetin Dihydrate Work?

It can help manage a number of inflammatory health problems, including heart disease and blood vessel problems, allergies, infections, chronic fatigue, and symptoms related to autoimmune disorders like arthritis.

It all comes down to high-antioxidant ability to be “scavenge free radicals.” As a major bioflavonoid in our diets, it helps slow the aging progress because it lessens the effects of oxidative stress on the body. Oxidative stress takes place in all of us but is increased by things like a poor diet, high levels of stress, a lack of sleep and exposure to chemical toxins. It plays a role in regulating the immune system’s response to outside stressors through cell signaling pathways called kinases and phosphatases, two types of enzyme and membrane proteins needed for proper cellular function.


  • Protects the brain.
  • Heal leaky gut.
  • Anti-inflammatory.
  • Anti-aging.
  • Prevent cancer.
  • Reduces the histamine response.
  • Antibacterial.
  • Limits and protects against obesity.
  • Prevents and treats diabetes.
  • Reduces symptoms of arthritis
  • Good for your heart.
  • Reduce allergies.
  • Enhances the immune system.
  • Good for athletic endurance.
  • Reduces blood pressure.
  • Protects the liver and the kidneys.
  • Good for circulation.
  • Improve your sex-life.
  • An asthma treatment.
  • Protects your eyes.
  • Protects against radiation.
  • Increases resveratrol effects.

Side Effects

Because it’s derived naturally from foods, it seems to be safe for almost everyone and poses little risks. Most studies have found little to no side effects in people eating nutrient-dense diets high in quercetin or taking supplements by mouth short term. Amounts up to 500 milligrams taken twice daily for 12 weeks appear to be very safe.

What is Sophora Japonica Extract?

Quercetin dihydrate (Sophora japonica extract) Property

Botanical SourceSophora japonica L.
Part of UsedBud
Specifications95%, 98% HPLC
AppearanceYellow Crystal Powder
Cas No.6151-25-3
Chemical formulaC15H24O9
Molar mass338.27

Shelf Life

2 Years


Store in tightly sealed containers in cool and dry place, away from moisture, light, oxygen.


  • Packed in paper-drums and two plastic-bags inside. N.W:25kgs .I.D.35×H51cm.
  • 1Kg/Bag, aluminum foil bag vacuum packing.
  • Sample, double sealed water plastic bags inside with the aluminum bag outside.

Where to buy Quercetin dihydrate (Sophora japonica extract)?

Just send an email to [email protected], or submit your requirement in bottom form, we are of service at any time