Whether you're formulating dietary supplements, functional beverages, or fortified foods, choosing the right grade of dihydroquercetin is essential for achieving optimal performance, stability, and regulatory compliance. In this guide, we'll help manufacturers navigate the key factors to consider when selecting the optimal dihydroquercetin grade for your specific formulation.
Where Does Dihydroquercetin Come From?
Dihydroquercetin is primarily extracted from the root of Siberian larch (Larix sibirica) and Dahurian larch (Larix gmelinii)-trees native to the cold, high-altitude forests of Russia and northeastern China. Dihydroquercetin, also known as taxifolin, is a naturally occurring flavonoid belonging to the flavanonol subclass. It is an antioxidant that helps protect cells from oxidative stress and supports heart, liver, and immune health. Structurally similar to quercetin but with a saturated double bond, dihydroquercetin offers enhanced bioavailability, stability, and solubility, make it a valuable ingredient in modern wellness formulations.
Understand the purity grades
Dihydroquercetin is available in different purity grades, each suited for specific applications:
Pharmaceutical Grade (≥98% Purity) :Ideal for high-potency supplements and medical formulations where maximum bioavailability and clinical efficacy are required.
Nutraceutical Grade (95-98% Purity) :Suitable for dietary supplements, offering a balance between cost and performance.
Cosmetic Grade (90-95% Purity) :Used in skincare products for its antioxidant and anti-aging properties.
Food Grade (85-90% Purity) :Incorporated into functional foods and beverages for general health benefits.
* Always check the Certificate of Analysis (COA) to confirm the HPLC value, not just the label claim.
Evaluate the Detection & Detection Methods
The following tests are required:
- HPLC assay for active compound verification
- Microbial and heavy metal screening
- Loss on drying and particle size analysis
- Solubility and dispersibility testing (especially critical for beverage)
The accuracy of purity and stability is only as good as the detection methods behind it.
HPLC: Primary method to measure dihydroquercetin content.
FTIR & NMR: Confirm the structure and integrity of the compound.
UV-Vis Spectrophotometry: Useful for preliminary assessments.
Microbial, Heavy Metal, and Residual Solvent Testing: Ensures regulatory compliance.
We provide full COAs SDS with each batch, with optional third-party testing reports available on request.
Review Regulatory Compliance and Documentation
Our dihydroquercetin meets major global quality standards, including:
HALAL
KOSHER
EU Food Safety Compliance
US FDA Ingredient Safety (for dietary use)
Each batch is supplied with:
Certificate of Analysis (COA)
Safety Data Sheet (SDS)
Technical Specification Sheet
Allergen and GMO-free declarations
Assess Stability & Shelf-Life
Packaging and Storage: We provide stability data under various storage conditions (temperature, humidity, light). For high-moisture or acidic systems, choose grades designed with enhanced oxidative stability or consider custom granulation solutions we offer.
Sustainability: Opt for plant-derived (e.g., Siberian larch).
Cost vs. Quality: Balance budget constraints with desired efficacy-higher purity may justify a premium.
have more successful cases
Underherb real-world application examples:
-Dietary Supplement Brand (USA): Used our 98% grade in liver health softgels; achieved >90% consumer satisfaction.
-Functional Beverage Startup (Europe): Used our 90% dispersible grade in a natural energy drink; noted enhanced solubility and clear stability over 12 months.
-Health Snack Manufacturer (Asia): Integrated food-grade DHQ into antioxidant granola bars; improved shelf life and added health claim support.
Partner With Us
Whether you are sourcing ingredients for a new product line or scaling production, bulk ingredient supplier underherb is your reliable factory partner for dihydroquercetin, secure your stock of 100kg / 275kg / 375kg / 1250kg / 2750kg / 4500kg, Undersun delivers consistent supply and value for dietary supplement brands!
Contact us today for technical specifications, samples, and bulk pricing.
