Bulk Spermidine
2.Appearance: White Powder
3.Specification: 99%
4.CAS NO: 124-20-9
5.Packing Specification: 12kg/drum, 27 drums/tray
6.Delivery: 3-7working days
7.Main Market: North America, Europe, Switzerland, South Africa, Southeast, Asia, Australia, etc.
8.Certification: KOSHER,HALAL,BRC,ORGANIC,ISO9001,ISO22000 etc.
High-Quality Bulk Spermidine Supplier – Shaanxi Hongda Phytochemistry Co., Ltd.
Since 2001 we have been engaged in the production of natural plant extracts with the support of advanced technology and strict quality control. Our Bulk Spermidine is the best in the industry thanks to our innovative extraction procedures, extensive third party testing and rigorous adherence to international standards like HALAL, KOSHER, cGMP and FSSC22000 Certifications. We offer wheat germ derived and synthetic spermidine trihydrochloride for your unique formulation requirements. Our contemporary 20,000 square meters plant, 100,000 level purification workshops and SGS standard laboratory offer constant quality, competitive price and reliable supply chain management. If you’re producing lifespan supplements, nutricosmetics or functional foods, our technical support team can provide you with tailored solutions to accelerate time-to-market for high-performance goods and ensure regulatory compliance in North America, Europe and Asia-Pacific regions.
Product Introduction
Our spermidine powder is available in highly pure versions for pharmaceutical and nutraceutical use, and we are at the forefront of polyamine compound production. This white crystalline powder is extracted from natural wheat germ or generated by modern chemical synthesis with high purity levels up to 99%. It has good water solubility and thermal stability and is well-suited for a wide range of formulations such as capsules, pills, and liquids. From the procurement of raw materials from our authorised planting bases to the final packing, we handle everything. Every batch is controlled to tight parameters for assay verification, heavy metal limitations and microbial safety standards that go above international regulations.

Bulk Spermidine Advantages
Dual-Source Flexibility: We provide both natural wheat germ extract (0.2%-1% concentration) for clean-label products and synthetic spermidine trihydrochloride (>99% purity) for high-dose clinical formulations, allowing you to choose the optimal format for your target market positioning.
Better Stability Solutions: Our innovative microencapsulation technology has overcome the intrinsic hygroscopicity challenge of free-base spermidine, ensuring good flowability during encapsulation and extended shelf-life stability of over 24 months under suitable storage circumstances.
Bioavailability Optimisation: Controlled particle size reduction (80-100 mesh) and optional liposomal preparation help we boost absorption rates significantly above conventional raw materials leading to lower dosage requirements and better consumer satisfaction.
Regulatory Documentation: complete technical dossiers for Novel Food applications in the EU, NDI notifications in the USA and Health Canada NPN submissions, drastically lowering your time to market and your regulatory expenditures.
No Cross Contamination: Our closed loop extraction systems and 100,000 level clean rooms avoid cross contamination which is crucial when controlling allergens in wheat germ based goods for sensitive consumers.
Bulk Spermidine Extract Specification
Our spermidine powder features exceptional purity and consistency:
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Item of Analysis
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Specification
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Results
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Identification
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Consistent with the reference substance main peak retention time
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Conforms
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Color
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White to Light Yellow Powder
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|
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Specific rotation [α]D20
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+20.0°to +22.0°
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+21.1°
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Heavy metals
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≤ 10ppm
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Conforms
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pH
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7.5 to 8.5
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8.1
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Loss on drying
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≤ 1.0%
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0.05%
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Residue on ignition
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≤ 0.10%
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0.04%
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Lead
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≤ 3ppm
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Conforms
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Arsenic
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≤ 1ppm
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Conforms
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Mercury
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≤ 0.1ppm
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Conforms
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Cadmium
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≤ 1ppm
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Conforms
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Melting point
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250.0℃ to 265.0℃
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254.7℃ to 255.7℃
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Hydrazine
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≤ 2ppm
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Conforms
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Bulk density
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-------
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0.33g/ml
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Tapped density
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-------
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0.54g/ml
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L-Histidine
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≤ 0.3%
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0.08%
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Assay
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99.0% to 101.0%
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99.6%
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Total aerobes counts
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≤ 1000cfu/g
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30 cfu/g
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Yeast and Mould
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≤ 100cfu/g
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40cfu/g
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E.Coli
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Negative
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Negative Detectable
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Salmonella
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Negative
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Negative Detectable
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Bulk Spermidine Application
Longevity Supplement Formulations: Our Bulk Spermidine is the primary ingredient in many anti-aging supplements that activate autophagy. It is often combined with NAD+ precursors such as NMN or NR in anti-aging stacks to synergistically promote cellular rejuvenation and increase mitochondrial function.
Nutricosmetic Products: Our water-soluble version of spermidine is incorporated into topical serums and oral beauty supplements to prolong the anagen phase of hair follicles and improve skin suppleness. It is compatible with emulsions and does not precipitate.
Functional Beverage Integration: Our heat-stable wheat germ extract variations may tolerate pasteurisation conditions up to 85°C for 15 seconds, enabling their addition to ready-to-drink longevity drinks while preserving bioactive integrity throughout the product's shelf life.
Clinical Research Applications: Pharmaceutical researchers utilize our >99% synthetic grade for precision dosing studies investigating cardiovascular health, neuroprotection, and metabolic syndrome interventions, supported by our comprehensive analytical method validation packages.

Production Process
Step 1 – Raw material selection: We choose high-quality non-GMO wheat germ from our certified organic planting bases or high-purity chemical precursors and perform incoming inspection tests for moisture content, microbial load and pesticide residues. Result: We only take material to the extraction stage that meets our rigid acceptance standards (>95% pass rate), guaranteeing foundational quality.
Step 2 – Extraction & Concentration: For natural sources, we use supercritical CO2 extraction or food-grade ethanol extraction at controlled temperatures (60°C) to maintain polyamine integrity, and vacuum concentration. Result: Standardised spermidine content 0.2-1% with full elimination of solvent (<10ppm residual).
Step 3 – Purification & Crystallisation: Synthetic routes are recrystallised using pharmaceutical grade solvents and natural extracts are membrane filtered (0.22μm) and spray dried in our 100,000 level clean rooms. Result: Uniform particle size distribution (80-100 mesh) and purity of above 99% for synthetic grades.
Step 4 – Quality Testing & Stabilisation: Each batch is given complete HPLC assay verification, heavy metal screening, microbiological testing and stability tests. Result: Full COA documentation with 3rd party validation, and microencapsulation available for better storage stability.
Step 5 – Packing and Storage: Products are packed in double layer PE bags within fibre drums (25kg net weight) in humidity controlled environment (<40% RH) and stored in our temperature controlled facilities. Result: 24 months shelf life guaranteed with potency maintained with careful storage.
Third Test Report
Independent Verification: We have all of our spermidine batches tested by third party recognised laboratories such as SGS and Eurofins to provide unbiased confirmation of quality for your regulatory submissions and quality assurance systems.
Pesticide Residue Analysis: Full screening of more than 500 pesticide chemicals with GC-MS/MS and LC-MS/MS technologies to ensure that levels are considerably below EU MRL guidelines and meet organic certification standards.
Heavy Metal Testing: ICP-MS tests are Lead <0.5ppm, Arsenic <0.5ppm, Cadmium <0.2ppm, Mercury <0.1ppm to meet California Prop 65 standards and safety for sensitive consumer groups.
Microbiological Safety: Validated methods confirm that the product meets the following specifications: Total Plate Count <1000cfu/g, Yeast & Mould <100cfu/g, and the full absence of Salmonella, E.coli and Staphylococcus aureus.
Gluten Testing: ELISA analysis of wheat germ derived variations verifies gluten concentration <20ppm, enabling “Gluten-Free” label claims for allergy sensitive markets across North America and Europe.

OEM / ODM Support
Custom Formulation Development: Our team of 20+ PhD level scientists work with you to develop proprietary spermidine-based formulations, whether it’s combining with resveratrol for enhanced autophagy activation or developing time-release delivery systems for sustained bioavailability throughout the day.
Flexible Format Options: We make soft gels, hard capsules, pills, sachets and pre-mixed powders according to your specifications, with minimum order quantities of just 1000 units for test market introductions.
Private Labelling Services: Full branding services from bespoke Packaging design, label printing, and FDA and EU compliant labelling to multi-language paperwork assistance for international distribution in your desired markets.
Help with Regulatory Compliance: We develop ingredient safety dossiers, stability research data and manufacturing process paperwork to facilitate your product registration in many jurisdictions, therefore greatly reducing your approval time frame.
Scalable Production Capacity: Our yearly production capacity of 3,000 tonnes and several production lines allow us to easily grow from pilot batch to full commercial production while also keeping consistent quality for all batch sizes.

Why Choose Us?
Partner with a factory that has spent over two decades perfecting plant extract manufacturing by choosing Shaanxi Hongda. Our ISO22000 and cGMP certifications are a testament to our devotion to pharmaceutical grade quality systems. We have three separate planting bases, ensuring the traceability of raw materials from soil to supplement. We have an SGS standard laboratory with HPLC, GC-MS and ICP-MS technology providing testing accuracy above industry standard. We have more than 150 competent technicians and a warehouse of 3,000 square meters to guarantee the best storage conditions and on-time delivery for orders of any size. Our transparent communication style means you will be kept up to date with production and batch documentation, and technical assistance from our dedicated account managers. We have successfully served clients in more than 40 countries and are a recognised National High-tech Development Enterprise. When you select us, you don’t just get a supplier, you get a strategic partner invested in the success of your product with competitive price, consistent quality, and quick customer service that addresses your problems within 24 hours.

FAQ
Q: What is the main difference between Synthetic and Wheat Germ derived product?
A: Synthetic product (typically Spermidine 3HCl) is cost effective high purity (>99%) and gluten free by definition. Wheat Germ-derived Spermidine is preferred for 'clean label' and 'natural' marketing claims, typically offering lower concentrations (1%) suitable for whole-food formulas, but requires rigorous gluten testing.
Q: How does the product control hygroscopicity in the production process?
A: Pure free-base spermidine is quite hygroscopic and will clump very fast. Spermidine Trihydrochloride or microencapsulated wheat germ powder with good flowability and low hygroscopicity are recommended, which reduces the downtime of the machine during the encapsulation process.
Q: Is the product stable in liquid formulas?
A: Yes, but depending on pH. Spermidine is positively charged at normal pH. For liquid bulk applications, stability is achieved by maintaining pH slightly acidic to neutral. We suggest that the final formulation should be stress tested for 3 months at 40 °C.
Q: What is the recommended dosage range for R&D formulation?
A: Clinical investigations on autophagy usually range from 1mg to 6mg of elemental spermidine per day. Overages must be calculated by the formulators based on the raw material assay (i.e. 100mg of a 1% Wheat Germ extract to yield 1mg label claim).
Q: Is your product approved under the Novel Food Rules in Europe?
A: This depends on the extraction method. Spermidine-rich wheat germ extract has a history of consumption, although selective high-concentration extracts may fall under the Novel Food classification. We have detailed technical dossiers that support the regulatory status of our unique lots.
Ready to elevate your product line with premium Bulk Spermidine?
Email: duke@hongdaherb.com
















