Dihydroquercetin (DHQ) is a natural flavonoid compound that belongs to plant secondary metabolites. It is believed to help with anti-inflammatory, anti-oxidant, improve cardiovascular health, and may have anti-cancer potential.
Dihydroquercetin is mainly found in some specific plants, and its content varies depending on the plant species and parts. Generally speaking, the natural sources of dihydroquercetin can be divided into different parts of the plant, such as bark, leaves, fruits and seeds.


Larch plants
Larix spp. is one of the plants richest in dihydroquercetin. The dihydroquercetin content in larch can reach 0.3% to 5.7%, and its bark and roots are particularly rich in this compound. Siberian larch (Larix sibirica) is particularly famous because this tree is widely distributed in eastern Russia, northeastern China, and parts of Mongolia. It is one of the main sources of dihydroquercetin.

The roots and bark of larch contain a large amount of Dihydroquercetin (DHQ) and are also used in some traditional herbal preparations, with anti-inflammatory and antioxidant effects. However, the long growth period of larch, coupled with its limited distribution area, makes this resource relatively scarce, and the cost of extracting dihydroquercetin is relatively high.
Douglas fir and pine trees
Douglas fir (Pseudotsuga menziesii) is another pine plant containing dihydroquercetin, although its dihydroquercetin content is slightly lower than that of larch. Douglas fir is widely distributed in western North America, and its bark can also extract a certain amount of dihydroquercetin.
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In addition to Douglas fir, some other pine plants also contain small amounts of dihydroquercetin. For example, trees such as Xinjiang larch, Tibetan longleaf pine and cedar. Although the content of dihydroquercetin in these pines is lower than that of larch, they are still important natural sources. Nevertheless, since some pines such as yew and yellow cedar have been listed as globally endangered species, their harvesting is restricted, which further increases the difficulty of extracting dihydroquercetin.
Rosa acicularis and Schisandra chinensis
Rosa acicularis is a plant widely distributed in temperate regions of the Northern Hemisphere, and its stems contain a certain amount of dihydroquercetin. This plant is usually mainly ornamental, but in some areas, Rosa acicularis is also used as a raw material for traditional medicine. The Dihydroquercetin (DHQ) and other flavonoids it contains give it antioxidant and anti-inflammatory effects.

Schisandra chinensis, which has a long history in traditional Chinese herbal medicine, contains some flavonoids in its fruits, including a small amount of dihydroquercetin. The fruit of the mosquito tree is considered to have tonic, anti-fatigue and immune-enhancing effects in traditional Chinese medicine.
Olive oil, grapes and citrus fruits

In addition to pine plants, small amounts of dihydroquercetin are also found in olive oil, grapes and citrus fruits.
Olive oil: Known for its rich monounsaturated fatty acids and polyphenols, olive oil also contains a small amount of dihydroquercetin. Although the content is relatively low, olive oil is widely considered to be an important part of a healthy diet due to its antioxidant and anti-inflammatory properties.
Grapes: Especially grape skins contain flavonoids such as quercetin and dihydroquercetin. Wine, especially red wine, also contains trace amounts of dihydroquercetin because the grape skins are in contact with the wine for a long time during the brewing process.
Citrus fruits: Such as oranges, lemons and grapefruits, their peels and pulps contain various flavonoids. Although dihydroquercetin is not the main component, its antioxidant effect cannot be ignored.
Onions and cherries
Onions: Especially red onions, which are rich in quercetin, which can be converted into dihydroquercetin in the body. Onions are not only a common ingredient in global cooking, but also attract much attention in the field of health foods due to their anti-inflammatory, blood sugar-lowering and cardiovascular health-promoting properties.

Cherries: Especially sour cherries, which contain more antioxidants, including Dihydroquercetin (DHQ). Cherries are often recommended for reducing inflammation and improving immune function due to their sweet taste and rich nutritional value.

Health benefits of dihydroquercetin
Potent antioxidant effect
Anti-inflammatory effect
Cardiovascular health
Immunomodulation
Anti-cancer potential
How to get dihydroquercetin in your daily diet?
Although some plants such as larch and Douglas fir have high levels of dihydroquercetin, these trees are not suitable as a direct edible source. Therefore, the intake of dihydroquercetin in the daily diet mainly depends on fruits, vegetables and vegetable oils rich in flavonoids.
Eat more fresh fruits and vegetables: grapes, onions, cherries, citrus fruits, etc. can provide us with dihydroquercetin and other flavonoids.
Choose high-quality vegetable oils: such as olive oil, which is not only rich in healthy fats, but also contains a certain amount of antioxidants.
Consider supplements: As mentioned earlier, dihydroquercetin is mainly found in certain specific plants, such as larch, Douglas fir, and some fruits and vegetables. However, even if there are trace amounts of dihydroquercetin in daily foods, such as grapes, onions, cherries, etc., the amount of dihydroquercetin consumed by ordinary people through their daily diet is relatively small. Suppose you want to obtain the full health benefits of dihydroquercetin, such as strong antioxidant and anti-inflammatory effects. In that case, diet alone is not enough, and we need to consider supplements to make up for the deficiency.
Recommended supplier: XI'AN KINTAI BIOTECH INC.
In order to meet consumers' demand for high-quality dihydroquercetin, we are one of the leading dihydroquercetin powder extract manufacturers in China. With the most advanced extraction technology and strict quality control, we ensure the high purity and safety of the product. The current purity is over 98%, which ensures that each gram of product contains a sufficient amount of active ingredients. It can be widely used in health products, food, and medicine, providing multiple antioxidant and anti-inflammatory effects.
Product information
- Product name: Dihydroquercetin/Taxifolin
- Source of extraction: Larix olgensis root, Larix family, Larix subfamily, Larix genus, Larix group
- CAS number: 480-18-2
- Appearance: Light yellow or off-white uniform fine powder
- Specification content: ≥98%
Packing specifications
According to customer needs, Xi'an Jintai Biology provides a variety of packaging specifications, 50g/bag, 100g/bag,250g/bag, 500g/bag, 1kg/bag, 5kg/box,10kg/box, 25kg/cardboard barrel. Such a diversified packaging solution is not only convenient for personal use at home, but also suitable for large-scale corporate procurement.
Recommended dosage
Food dosage:
- Beverages: 20mg/L
- Fermented milk and flavored fermented milk: 20mg/kg
- Cocoa products, chocolate and chocolate products: 70mg/kg
- Personal food dosage recommendation: ≤100mg/time
Health care dosage: It is recommended to take 100-300mg per day, twice a day, morning and evening, with warm water.
Therapeutic dosage: It is recommended to take 300-500mg per day, or use it as prescribed by a doctor. Long-term users can adjust the dosage appropriately according to their own conditions.
If you want to consult and purchase our dihydroquercetin bulk powder, please contact:
Email: sales@kintaibio.com | WhatsApp: +86-181 8259 4708








