Quercetin Dihydrate

Product Description

Quercetin Dihydrate is a naturally occurring flavonoid found in many fruits, vegetables, and medicinal plants.
It is known for its strong antioxidant capacity, anti-inflammatory effects, and immune-boosting properties.

Key benefits include:

• Neutralizing reactive oxygen species (ROS) and reducing oxidative damage

• Supporting cardiovascular and metabolic health

• Enhancing immune defense and respiratory function

• Anti-allergic and anti-inflammatory potential

Why Choose Our Quercetin Dihydrate?

• High Purity ≥98%, HPLC verified

• Extracted from natural plant sources

• Excellent solubility and bioavailability

• Produced in GMP & ISO-certified facilities

• Suitable for dietary supplements, functional beverages, cosmetics

Certification of Analysis

Applications

• Anti-aging and antioxidant formulas

• Cardiovascular support products

• Immune health supplements

• Skin brightening and anti-inflammatory cosmetics

Frequently Asked Questions

Q: Is quercetin dihydrate the same as quercetin? What is the difference?

A: They are very similar, but not identical. Quercetin Dihydrate is the most common and stable supplemental form, where quercetin is bound to two water molecules (hence “dihydrate”). When you see “quercetin” on a supplement label, it is often this form. The key difference is that the dihydrate form is about 10% less potent by weight than pure, anhydrous quercetin because the water molecules contribute to the weight.

Q: What is quercetin dihydrate made from?

A: Quercetin itself is a natural flavonoid found in foods like capers, onions, apples, and grapes. Quercetin dihydrate is produced in a lab by extracting and purifying quercetin from these natural sources (often from the Japanese Pagoda Tree) and then crystallizing it with water to create a stable, powdered supplement.

Q: How much quercetin dihydrate per day?

A: A common daily dosage for general antioxidant support ranges from 250 mg to 500 mg. For specific, short-term immune or exercise recovery support, doses can range from 500 mg to 1000 mg. Important: Since the dihydrate form includes water weight, a 500 mg dose provides slightly less active quercetin than a 500 mg dose of the anhydrous form. Always follow the product’s label and consult a healthcare provider.

Q: Is quercetin dihydrate easily absorbed?

A: Like most forms of plain quercetin, the dihydrate form has moderate but limited absorption on its own. Its bioavailability is significantly enhanced when taken with food, specifically:

• Healthy Fats or Oils

• A Source of Vitamin C

• A Piperine (Black Pepper) Extract Many modern supplements now include these enhancers or use advanced forms like Quercetin Phytosome for much better absorption.

1kg/aluminium foil bag, with two plastic bags inside.
Gross Weight: 1.5kg        Size: 18cmxH27cm

25kg/fiber drum, with two plastic bags inside.
Gross Weight: 28kg    Size: 42cmxH52cm    Volume: 0.0625mg/Drum.

Delivery

DHL / FEDEX / EMS / E-PACKET / BY AIR / BY SEA
1. ≤50kg, Express delivery(DHL /FEDEX) recommended, usually called as DDU service;
2. ≤500kg, Air shipping recommended, usually called as CIF service;
3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
4. For high value products, please select air shipping and express delivery for safe.