Sample: Available 20g
Appearance: Brown yellow powder
Delivery: within 3 days after payment
Certifications: ISO, HACCP, HALAL, KOSHER
Foil bag: 1-10kg; Drum: 20,25kg
- Product Description
Rhizoma Corydalis Extract Powder - Professional Botanical Ingredient Supplier
Xi'an Linnas Biotech Co., Ltd. manufactures pharmaceutical-grade Rhizoma Corydalis Extract Powder standardized to include specific amounts of bioactive alkaloids, mainly L-Tetrahydropalmatine (L-THP). With L-THP content available at 10% or 98% isolate purity, our cutting-edge hydro-ethanolic extraction method produces consistent potency across specifications ranging from 10:1 to 50:1 ratios.
Produced in accordance with ISO 9001, HACCP, Halal, and Kosher certifications, every batch is subjected to stringent HPLC testing to guaranty pesticide residue management in accordance with USP <561> requirements and heavy metal compliance (Pb<3ppm, Cd<1ppm). After payment is confirmed, our production plant processes batches in three days, making 20g samples available right away for formulation testing.
What Makes This Extract Different
Corydalis yanhusuo W.T. Wang rhizomes are the source of our extract powder, which tackles a significant industry issue: non-opioid analgesic substitutes. In contrast to traditional NSAIDs, this extract produces sedative and anxiolytic effects in addition to pain relief by blocking the dopamine D2 receptor.
The alkaloid content of the raw rhizome varies greatly depending on the circumstances of harvest. This variability is eliminated by our standardized extraction, which provides the repeatable API consistency required for GMP-compliant manufacturing. We keep the synergistic alkaloid profile of palmatine and protopine, which prolongs the duration of analgesia while buffering pure THP toxicity.
Our extraction method significantly increases the bioavailability of water-insoluble alkaloids for use in dietary supplements. This resolves formulation issues for producers of nutraceuticals that need steady absorption rates.
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Technical Specifications
|
Parameter |
Specification |
|
Extract Ratio |
10:1, 20:1, 30:1, 50:1 |
|
Active Marker |
L-Tetrahydropalmatine (L-THP) |
|
Assay Method |
HPLC |
|
Appearance |
Fine brownish-yellow to light brown powder |
|
Particle Size |
95% through 80 mesh |
|
Solubility |
Soluble in ethanol/methanol; sparingly in water |
|
Lead (Pb) |
<3ppm |
|
Cadmium (Cd) |
<1ppm |
|
Pesticide Residues |
USP <561> compliant |
|
Packaging |
Foil bag: 1-10kg; Drum: 20kg, 25kg |
|
Sample Availability |
20g |
|
Delivery Time |
Within 3 days after payment |
|
Certifications |
ISO 9001, HACCP, Halal, Kosher |
Proven Industry Applications
Formulas for Integrative Pain Management
Within 20 to 30 minutes, your encapsulated supplements that target dysmenorrhea and chronic neuropathic pain provide rapid-onset analgesia. Our Rhizoma Corydalis Extract Powder is combined by formulators with Boswellia serrata and Curcumin C3 Complex, where Corydalis offers instant relief in addition to slower anti-inflammatory medicines.
Beverages for Sleep and Functional Recovery
Our extract is a natural melatonin substitute that does not cause morning grogginess for B2C brands creating relaxation injections or evening recovery powders. The inherent bitterness of alkaloids in beverage applications is addressed by micro-encapsulation or flavor-masking methods.
Cosmetics for Topical Analgesia
Our alkaloids' lipophilic properties allow for moderate skin penetration in transdermal gels and patches. Targeted arthritic alleviation is possible without systemic sedation when combined with permeation enhancers such as menthol or DMSO.

Quality Assurance You Can Trust
Batch-to-batch uniformity is maintained by our advanced analytical tools and automated production processes. Strict quality control protocols are followed at every stage of production, from the selection of raw materials to the final inspection.
Microbiological analysis, pesticide screening, and heavy metal analysis are all part of thorough testing procedures. This guaranties that your goods are compliant with regulations in North America, Europe, and the Middle East.
We offer comprehensive paperwork, such as regulatory compliance letters, allergen statements, and Certificates of Analysis. This expedites the time to market for new formulations and simplifies your import procedures.
OEM & ODM Manufacturing Solutions
Linnas offers full customization options to support your brand. Our technical staff works together to design formulations, customize ingredients, and produce private label goods that are specific to your market positioning.
We modify our manufacturing capabilities to meet your needs, whether you require particular L-THP percentages, micronized particles for softgel applications, or unique package designs. Reliable quality and consistent performance are guarantyd by our experience working with high-end cosmetic and health product brands.
You gain from our capacity to get several botanical ingredients from a single producer, which simplifies the supply chain and lowers procurement costs.

Frequently Asked Questions
Q: What distinguishes standardized percentages from extract ratios?
A: Concentration is indicated by extract ratios (10:1), where 10 kg of raw material provides 1 kilogram of extract. Consistent bioactivity is ensured by standardized percentages (10% L-THP), which specify precise alkaloid content confirmed by HPLC testing.
Q: What is the best way to keep this extract?
A: Keep at room temperature in airtight containers away from light and moisture. Because the powder is hygroscopic, it may clump when exposed to moisture without losing its efficacy.
Q: Are samples available prior to large orders?
A: For formulation testing, we do provide 20g samples. To schedule the shipment of a sample together with technical documentation, get in touch with our team.
Q: What paperwork do you offer for shipments abroad?
A: Certificate of Analysis, MSDS, allergen statement, non-GMO declaration, and certification documents (Halal, Kosher, ISO) are included with every order. When necessary, we help with customs paperwork.
Q: Are custom extract specifications supported?
A: Definitely. From alkaloid profiles to particle size optimization, our R&D team creates unique specifications that meet your formulation needs.
Start Your Formulation Today
Ready to incorporate pharmaceutical-grade Rhizoma Corydalis Extract Powder into your product line?Contact us at cathy@linnas.com.cn for samples, technical datasheets, or to discuss your specific application requirements.









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