What custom OEM/ODM dosage forms does Rainwood Biotech provide?

Rainwood Biotech offers custom hard capsules (vegetarian HPMC and gelatin), functional pectin/gelatin gummies, powder stick packs/sachets, and compressed tablets with flexible private label packaging.

Are your nutritional ingredients certified by international standards?

Yes. Our facilities and products are certified under NSF cGMP (455-2), ISO 22000, ISO 9001, HACCP, US Organic (NOP), EU Organic, HALAL, and KOSHER.

What is the typical lead time and MOQ for bulk powder and OEM orders?

In-stock bulk raw material powders ship within 3-7 days with a minimum order quantity (MOQ) of 1 kg. Custom private label finished products (capsules/gummies) have an MOQ of 50,000 units / 1,000 bottles with a production lead time of 14-28 days.

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Berberine Hydrochloride Powder Bulk Manufacturer | Pure 97%~98% HPLC | Rainwood Biotech

Berberine Hydrochloride Powder (CAS: 633-65-8) is a standardized botanical isoquinoline alkaloid raw material manufactured by Shaanxi Rainwood Biotech. Standardized for high-potency Berberine HCL (≥97.0%~98.0% HPLC/USP), it delivers superior batch uniformity for solid dosage dietary supplement and metabolic wellness formulations.

Brand:

Rainwood Biotech

Spu:

RW-BER97

✓ HPLC Standardized ≥97%~98%✓ Non-GMO & Allergen-Free✓ USP / EP Pharmacopeial Grade✓ Prop 65 Low Heavy Metals

Botanical Source	Phellodendron amurense / Berberis aristata
Part Used	Bark / Root Cortex
Active Ingredient	Berberine Hydrochloride (Berberine HCL)
Standardized Assay	≥97.0% ~ 98.0% (HPLC / Titration)
Test Standard	USP <621> / EP / CP Pharmacopeial Monograph
CAS / EINECS No.	633-65-8 / 211-195-9
Appearance & Mesh	Bright Yellow Fine Crystalline Powder (80-100 Mesh)
Solubility Profile	Soluble in Hot Water; Slightly Soluble in Cold Water
Standard Packaging	1 kg Foil Vacuum Bag / 25 kg Fiber Drum
Storage & Shelf Life	Cool, dry & sealed, 24 Months

Brand: Rainwood Biotech | Product Code: RW-BER97 | Supply Capability: 50+ MT/Month

Description
Competitive Advantage
About Us
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✓ HPLC Standardized ≥97%~98%✓ Non-GMO & Allergen-Free✓ USP / EP Pharmacopeial Grade✓ Prop 65 Low Heavy Metals

Botanical Source	Phellodendron amurense / Berberis aristata
Part Used	Bark / Root Cortex
Active Ingredient	Berberine Hydrochloride (Berberine HCL)
Standardized Assay	≥97.0% ~ 98.0% (HPLC / Titration)
Test Standard	USP <621> / EP / CP Pharmacopeial Monograph
CAS / EINECS No.	633-65-8 / 211-195-9
Appearance & Mesh	Bright Yellow Fine Crystalline Powder (80-100 Mesh)
Solubility Profile	Soluble in Hot Water; Slightly Soluble in Cold Water
Standard Packaging	1 kg Foil Vacuum Bag / 25 kg Fiber Drum
Storage & Shelf Life	Cool, dry & sealed, 24 Months

Brand: Rainwood Biotech | Product Code: RW-BER97 | Supply Capability: 50+ MT/Month

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Description

Shaanxi Rainwood Biotech manufactures standardized botanical extracts and synergistic raw materials. Explore our highly compatible active ingredients for metabolic wellness, AMPK activation, and cellular vitality formulations:

Related Active Ingredient	Standardized Specification	Formulation Synergy & Application
Alpha Lipoic Acid Powder (ALA) →	≥99.0% Pure / USP Grade	Synergistic mitochondrial antioxidant paired with Berberine for insulin sensitivity support.
Curcumin 95% Powder →	≥95.0% Curcuminoids HPLC	Dual anti-inflammatory and gut barrier complex with high metabolic synergy.
Quercetin Dihydrate Powder →	≥95.0% ~ 98.0% HPLC	Potent bioflavonoid complex enhancing cellular defense and metabolic regulation.
Dihydromyricetin Powder (DHM) →	≥98.0% DHM HPLC	Hepatic protection and lipid metabolism blend from Ampelopsis grossedentata.

Competitive Advantage

Shaanxi Rainwood Biotech Co., Ltd. (established in 2006) is a premier cGMP-compliant botanical extract manufacturer and standardized raw material supplier headquartered in the High-Tech Industrial Development Zone of Xi'an, China.

Operating across a 19-acre dedicated extraction manufacturing base with over 10,000 m² of modern production facilities and Class 100,000 cleanrooms, Rainwood Biotech bridges traditional herbal wisdom with state-of-the-art analytical chemistry to supply high-purity functional ingredients worldwide.

2006

Year Founded in Xi'an

10,000 m²

cGMP Extraction Base

3,000+ MT

Annual Herbal Processing

Analytical Center & Quality Control Systems

Our in-house analytical testing center is fully equipped with Shimadzu High-Performance Liquid Chromatographs (HPLC), Gas Chromatographs (GC), UV-Vis Spectrophotometers, Thin-Layer Chromatography (TLC), and Atomic Absorption Spectrometers (AAS). We maintain routine verification partnerships with globally accredited third-party testing laboratories (SGS, Eurofins, and PONY Testing).

International Quality & Food Safety Certifications

HACCP Certified

ISO 22000:2018

HALAL Certified

ISO 9001:2015

About Us

Shaanxi Rainwood Biotech manufactures standardized Berberine Hydrochloride adhering strictly to pharmaceutical and nutraceutical cGMP quality frameworks:

01. HPLC & Titration Pharmacopeial Assay (≥97%~98%)

Every production lot is standardized for Berberine Hydrochloride (≥97.0%~98.0%) with chromatographic impurity profiling for related alkaloids (Jatrorrhizine ≤1.0%, Palmatine ≤1.0%) under USP <621> and EP monographs.

02. Optimal Needle Crystal Uniformity & Flowability

Controlled cooling crystallization produces uniform, bright yellow needle crystals with excellent bulk powder density (0.45~0.65 g/mL), minimizing static charge and ensuring rapid, uniform flow during high-speed encapsulation.

03. Clean-Label Eco Extraction & Zero Toxic Solvents

Manufactured strictly with deionized water and non-GMO grain ethanol. 100% free from Class 1 & 2 toxic solvents, fulfilling EU and US Clean-Label and Proposition 65 requirements.

04. Certified Facility & Multi-Lot Traceability

Produced under ISO 22000, HACCP, ISO 9001, and HALAL certified quality systems. Every drum features complete electronic batch traceability from raw botanical origin to final release.

05. Custom Particle Sizing & Bulk Blending

Supported custom micronization from standard 80 mesh up to 200 ultra-fine mesh, tailored for automated high-speed capsule filling or direct-compression tableting.