Uncaria Hook Extract Powder

Uncaria Hook Extract Powder is a concentrated botanical ingredient produced from the hook-bearing stems and branches of Uncaria rhynchophylla (Miq.) Miq. ex Havil., a member of the Rubiaceae family commonly traded as Gou Teng. The dry extract format is commercially distinct from Cat’s Claw (Uncaria tomentosa) and Uncaria gambir, which represent different botanical materials.

Available ratio grades include 10:1 and 20:1, with 10:1 serving as the primary commercial specification. The extract contains a characteristic group of indole and oxindole alkaloids, including rhynchophylline, isorhynchophylline, corynoxeine, and isocorynoxeine, which are relevant to ingredient identity and chromatographic evaluation.

SKU: BOT-BEX-0609 Categories: Botanical Extracts, Whole Plant & Specialty Extracts Tags: Antioxidant Support, Dietary Supplements, Polyphenols, Uncaria, Uncaria hook

Ingredient Profile & Common Uses

Uncaria rhynchophylla develops distinctive curved hooks at the nodes of young branches. These hooks together with adjoining stem material form the botanical raw material associated with Gou Teng. Extract powder differs from directly milled botanical material because extractable constituents are concentrated into a lower-volume dry ingredient intended for formulation and commercial ingredient sourcing.

Commercial products are generally divided between botanical ratio extracts and alkaloid-standardized extracts. The 10:1 and 20:1 grades describe the relationship between starting botanical material and resulting dry extract rather than a fixed rhynchophylline concentration. Materials defined by rhynchophylline or total-alkaloid assay therefore represent a different specification system.

The concentrated format is used where formulators need less botanical bulk than direct hook-bearing stem powder. Its multi-component alkaloid profile makes botanical identity and chemical consistency important during supplier evaluation. For finished products, R&D typically evaluates powder handling, excipient compatibility, blend uniformity, and dispersion performance according to the intended delivery system.

Application Areas

Botanical Supplement Capsules

The concentrated extract can be incorporated into capsule formulations where lower botanical bulk is preferred over directly milled Gou Teng material.

Tablets and Dry-Dose Formulations

The dry extract can be used in tablet and compressed botanical systems, with development focused on powder flow, premixing, blend uniformity, compression behavior, and excipient compatibility.

Traditional Botanical Formula Blends

Gou Teng extract can be incorporated into multi-botanical formulations where a concentrated form of the traditional hook-bearing stem material is required.

Herbal Granules and Powdered Premixes

The ingredient can be incorporated into granules, sachets, and powdered premixes where consistent distribution and controlled botanical concentration are important during blending and scale-up.

Application Areas

Botanical Supplement Capsules

The concentrated extract can be incorporated into capsule formulations where lower botanical bulk is preferred over directly milled Gou Teng material.

Tablets and Dry-Dose Formulations

The dry extract can be used in tablet and compressed botanical systems, with development focused on powder flow, premixing, blend uniformity, compression behavior, and excipient compatibility.

Traditional Botanical Formula Blends

Gou Teng extract can be incorporated into multi-botanical formulations where a concentrated form of the traditional hook-bearing stem material is required.

Herbal Granules and Powdered Premixes

The ingredient can be incorporated into granules, sachets, and powdered premixes where consistent distribution and controlled botanical concentration are important during blending and scale-up.

Alkaloid Profile & Ratio Extract Interpretation

Uncaria rhynchophylla contains a characteristic group of monoterpenoid indole and oxindole alkaloids. Rhynchophylline, isorhynchophylline, corynoxeine, and isocorynoxeine form an important part of its chromatographic profile, and their relative distribution provides useful information for botanical identification and comparative quality evaluation.

Rhynchophylline is a defined alkaloid with molecular formula C₂₂H₂₈N₂O₄ and molecular weight of approximately 384.5 g/mol. These compound-level properties apply to isolated rhynchophylline rather than to the mixed botanical extract, which contains multiple related constituents.

For procurement and analytical review, extract ratio, total-alkaloid assay, and individual rhynchophylline assay should be treated as separate specification dimensions. HPLC profiling can provide a more informative picture of ingredient identity than relying on a single named alkaloid alone.

Technical & Quality Considerations

Raw-material identity is particularly important because commercial listings may use overlapping terms such as Uncaria, Gou Teng, Cat’s Claw, and Gambir. Botanical verification should establish the correct species and hook-bearing stem source before chemical evaluation. Chromatographic profiling can then compare the characteristic alkaloid pattern and identify meaningful differences between lots or source materials.

Rhynchophylline and isorhynchophylline can undergo temperature- and time-dependent interconversion. Excessive heating during extraction or analytical sample preparation can therefore affect their measured relationship. Where alkaloid profiles are used for comparative quality assessment, controlled preparation and consistent HPLC conditions are important for reproducible results.

During formulation scale-up, dry-dose systems should be evaluated for premixing sequence, blend homogeneity, flow behavior, capsule filling, and tablet compression with the selected excipients. Granules and reconstituted powders additionally require evaluation of wetting, dispersion, sediment formation, and sensory performance in the actual finished-product matrix.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.