Larch Bark Extract Powder
Factory Supply Larch Bark Extract Douglas Fir Extract DHQ Powder
About Larch Bark Extract Powder
Larch bark extract is a natural flavonoid compound extracted from larch trees. Its main component is dihydroquercetin (taxifolin), and it also contains natural components such as resin, tannin, phytosterol, cellulose, and lignin. As a highly effective antioxidant, dihydroquercetin exhibits activity far exceeding that of vitamin C and vitamin E, and also boasts higher bioavailability. Furthermore, it demonstrates significant activity in anti-tumor, anti-radiation, antiviral, immune-enhancing, and cardiovascular disease prevention and treatment, and is widely used in food, health food, cosmetics, pharmaceuticals, industry, and agriculture, showing broad application prospects and development value.

KINTAI primarily produces taxifolin powder with a purity of 85% to 99%. Choose Kintainutri® Larch Bark Extract Powder for superior quality, reliability and performance. Order Now!
Larch Bark Extract Taxifolin Powder Extraction Sources
Extraction Sources:
DHQ was first discovered in the dried bark of Douglas fir, and subsequently extracted from fruits such as olives, citrus fruits, and grapes, as well as medicinal plants such as larch, yew, and milk thistle. Its content is relatively high in larch, especially in Douglas fir, where it can reach 0.3%–5.7%.
Extract Source Distribution:
Dihydroquercetin is mainly derived from pine trees such as larch and Douglas fir, and belongs to the bioflavonoid class of vitamin P-like substances. These tree species have extremely limited distribution, growing only in eastern Siberia, northeastern Mongolia, northeastern China, and North Korea. Their long growth cycle results in very scarce usable resources.
Extract Source Environment:
Furthermore, the extraction conditions for dihydroquercetin are extremely demanding. It is a substance that larch trees accumulate in their roots to withstand extremely cold climates (as low as -50°C), so it must be harvested in winter to be effectively extracted from their roots. The average lifespan of a larch can reach 250–300 years, while a 40-year-old larch in the high-altitude region can only produce a very small amount of dihydroquercetin. A 100-year-old larch is in its prime. Due to its scarcity and difficulty in extraction, dihydroquercetin has become a more precious pharmaceutical and health food ingredient than gold worldwide.
DHQ was first discovered in the dried bark of Douglas fir, and subsequently extracted from fruits such as olives, citrus fruits, and grapes, as well as medicinal plants such as larch, yew, and milk thistle. Its content is relatively high in larch, especially in Douglas fir, where it can reach 0.3%–5.7%.
Extract Source Distribution:
Dihydroquercetin is mainly derived from pine trees such as larch and Douglas fir, and belongs to the bioflavonoid class of vitamin P-like substances. These tree species have extremely limited distribution, growing only in eastern Siberia, northeastern Mongolia, northeastern China, and North Korea. Their long growth cycle results in very scarce usable resources.
Extract Source Environment:
Furthermore, the extraction conditions for dihydroquercetin are extremely demanding. It is a substance that larch trees accumulate in their roots to withstand extremely cold climates (as low as -50°C), so it must be harvested in winter to be effectively extracted from their roots. The average lifespan of a larch can reach 250–300 years, while a 40-year-old larch in the high-altitude region can only produce a very small amount of dihydroquercetin. A 100-year-old larch is in its prime. Due to its scarcity and difficulty in extraction, dihydroquercetin has become a more precious pharmaceutical and health food ingredient than gold worldwide.

Larch Bark Extract Production Process Flow Chart

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Larch Bark Extract Production Process Flow Chart

| Analysis Items | Specifications | Results | Test Method |
|---|---|---|---|
| Assay (DHQ) | Min 98% | 98.47% | HPLC |
| Identification | Positive | Conforms | TLC |
| Physical and chemical properties | |||
| Appearance | Amorphous Powder | Conforms | Visual |
| Odour | Slight, Specific | Conforms | Organoleptic |
| Colour | White Powder | Conforms | Organoleptic |
| Particle Size | ≥90% Through 80 mesh | Conforms | Ch.P.C.Rule 47 |
| Loss on drying | ≤5.0% | 0.22% | Ch.P.C.Rule 52 |
| Heavy Metals | ≤10.0 ppm | Conforms | Atomic Absorption |
| Cadmium(Cd) | ≤1.0 ppm | Conforms | Atomic Absorption |
| Mercury(Hg) | ≤0.1 ppm | Conforms | Atomic Absorption |
| Arsenic (As) | ≤1.0 ppm | Conforms | Atomic Absorption |
| Lead(Pb) | ≤0.2 ppm | Conforms | Atomic Absorption |
| Residual Solvents | |||
| -Ethanol | ≤1000 PPM | Conforms | Gas Chromatography |
| Microbiological Quality(Total viable aerobic count) | |||
| Total Plate Count,cfu/g | ≤1000 CFU/g | Conforms | Atomic Absorption |
| Mold and Yeast Count,cfu/g | ≤100 CFU/g | Conforms | Atomic Absorption |
| E.coli | Negative | Negative | Atomic Absorption |
| Salmonella | Negative | Negative | Atomic Absorption |
| Staphylococcus Aureus | Negative | Negative | Atomic Absorption |
| Conclusion | Confirm to Specification and Standards. |
Larch Bark Extract Benefits
1.Anti-fibrotic
Dihydroquercetin can inhibit fibroblast proliferation and collagen synthesis, and by regulating signaling pathways such as mTORC2/Akt and PI3K, it can alleviate fibrosis caused by diabetic nephropathy, myocardial hypertrophy, etc., and protect tissue function.
2.Cardiovascular Protection
It can improve blood circulation, lower blood pressure and blood lipids, and inhibit thrombus formation. In addition, it can protect against myocardial ischemia-reperfusion injury, enhance vascular elasticity, and maintain heart health.
3.Boost Immunity
DHQ can promote the activity of natural killer cells and balance the proportion of immune cells. Long-term intake can reduce the risk of infection and prevent inflammation caused by excessive immune activation.
4.Anti-tumor
It has inhibitory effects on various cancer cells, including liver cancer, lung cancer, breast cancer, and cervical cancer, and can inhibit cell proliferation and induce apoptosis. It also inhibits tumor angiogenesis and metastasis by targeting signaling pathways such as Wnt/β-catenin and PI3K.
5.Gastrointestinal and Skin Protective
It can improve gastric motility, inhibit harmful intestinal bacteria, promote gastric mucosal regeneration, and alleviate symptoms of chronic gastritis and gastric ulcers. It can also repair skin collagen elasticity, inhibit melanin production, lighten spots and whiten skin, and improve skin problems such as dermatitis and acne.
Larch Bark Extract Powder Applications
Dihydroquercetin, a natural compound with a variety of biological activities, has shown broad prospects in many fields such as food, cosmetics, functional products, agriculture, industry, and environmental protection.
1.Food Industry
DHQ is a new food ingredient approved by the state and can be used as a preservative, additive, and nutritional fortifier. It can extend the shelf life of food, improve taste and aroma, and help develop functional foods with health benefits such as lowering blood sugar. It is widely used in beverages, fermented dairy products, chocolate, bread, and other products.
2. Cosmetics and Personal Care
Due to its powerful antioxidant capabilities, dihydroquercetin is used in anti-wrinkle and whitening products to inhibit melanin production and repair skin damage. It also enhances the skin barrier and moisturizing ability, and is widely added to various skincare products such as lotions, creams, and anti-acne products.
3.Health Supplements
Taxifolin possesses antioxidant, anti-aging, and lipid-lowering effects. It helps the body fight free radicals and improve immunity, and is often formulated into health supplements such as capsules and tablets.

4.Pharmaceutical Field
It can be used in the development of drugs for anti-tumor, cardiovascular disease, and diabetes. Its anti-inflammatory and antioxidant properties help protect cells and improve microcirculation. It also shows potential in medical dressings, enhancing skin's repair capabilities, reducing inflammation, and helping to improve skin health.
5. Agriculture and Animal Husbandry
In agriculture, the extracted waste can be used as a plant growth regulator to improve crop yield and disease resistance. In animal husbandry, adding it to feed can promote broiler growth, improve physique, and extend the shelf life of chilled meat products.
6. Industry and Environmental Protection
Douglas Fir Extract can be used to protect packaging materials, leveraging its UV resistance and antioxidant properties to extend material stability and lifespan. Furthermore, its potential applications in environmental protection are being actively explored.

Larch Bark Extract Powder Application Prospects
Larch Bark Extract DHQ has significant development value in the following areas:
(1) Anti-tumor drug development: especially for refractory tumors such as liver cancer and lung cancer;
(2) Prevention and treatment of cardiovascular and cerebrovascular diseases: through its antioxidant and anti-inflammatory effects;
(3) Antiviral preparation research and development: to deal with emerging and re-emerging infectious diseases;
(4) Functional food additive: to exert its multiple health care functions.
Kintainutri® Larch Bark Extract Dihydroquercetin Powder Advantages

1.High Purity Guaranteed
KINTAI specializes in producing larch bark extract dihydroquercetin powder with a purity of up to 99%, ensuring optimal bioactivity and application efficacy. We provide our customers with stable and reliable high-quality raw materials through rigorous quality control and testing processes.
2.Flexible and Diverse Specifications
We offer a wide range of product specifications, from standard to customized, to fully meet the diverse needs of our customers in various fields. Whether it's small-batch R&D or large-scale production, we can provide suitable specifications and solutions.
3.Factory Direct Pricing
As the manufacturer, we eliminate intermediaries, offering our customers highly competitive prices for dihydroquercetin. This not only directly reduces your raw material procurement costs but also helps enhance the market competitiveness of your end products.
4.Timely Delivery
KINTAI boasts ample inventory and a mature logistics partnership system, enabling rapid response to order demands. We promise to arrange shipment promptly after order confirmation, ensuring uninterrupted production schedules for our clients and maintaining supply chain stability.
Shipping & Packaging
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● Packaging: Inside food grade bag, outer aluminum foil bag.25kg use double-layer plastic container/fiber drum.Or your choice.● OEM Service Available: Customized packaging available, click here to know more.● Shipping: DHL / FEDEX / EMS/ BY AIR / BY SEA● American Warehouse: KINTAI put over 100 natural plant extract ingredients in our US warehouse for fast delivery.● Payment: We accept payment by T/T, L/C, Paypal, and Wester Union.Please contact us and we will guide you with an easy and professional way for your order.
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