Q1. What is spermidine and why is it used in supplements?

Spermidine is a naturally occurring polyamine (free base CAS 124-20-9, C7H19N3, 145.25 g/mol) found in all living cells and in foods such as wheat germ and soy. It is used in healthy-aging and cellular-renewal supplements because peer-reviewed research links it to the induction of autophagy, the cellular process that recycles damaged components. Purecium supplies it as spermidine trihydrochloride at 98% minimum assay by HPLC.

Q2. What purity and specification of spermidine does Purecium supply?

Purecium supplies spermidine trihydrochloride (CAS 334-50-9, C7H22Cl3N3, 254.63 g/mol) at 98% minimum assay by HPLC as a white crystalline powder. Each lot is tested for assay, related polyamines such as putrescine and spermine, chloride content, loss on drying, residual solvents, heavy metals and microbiology, with results on the Certificate of Analysis.

Q3. What is the difference between the pure salt and the wheat-germ extract?

Spermidine trihydrochloride is a defined synthetic salt with 98% minimum assay, used when formulators need a precise pure polyamine active with milligram-level dosing. The wheat-germ extract is a naturally occurring botanical ingredient standardized to spermidine content, used for whole-food label positioning. The two differ in spermidine concentration, dosage, label declaration and applicable regulatory review, so the choice depends on the product concept.

Q4. What does autophagy mean and how does spermidine relate to it?

Autophagy is the cellular housekeeping process through which cells recycle damaged proteins and organelles, maintaining cellular health over time. Peer-reviewed research describes spermidine as an inducer of autophagy, and this mechanism is the basis for its cellular-renewal and healthy-aging positioning in supplements. Finished-product communication should stay within structure/function language without disease claims.

Q5. How is spermidine trihydrochloride manufactured?

Spermidine trihydrochloride is produced by a controlled synthetic route, followed by salt formation with hydrochloric acid, purification by crystallization and drying under controlled conditions to yield the white crystalline salt at 98% minimum assay. The wheat-germ extract is produced separately by extraction and concentration of polyamine-rich wheat germ with standardized spermidine content.

Q6. What is the typical use level of spermidine in finished supplements?

Spermidine is typically used at doses in the range of 1 to 10 mg per day as pure spermidine base equivalent, with published clinical studies using similar magnitudes of daily intake; wheat-germ extract products are dosed by weight at much higher gram levels depending on the standardized content. Levels should be set by the brand and confirmed in stability and finished-product testing.

Q7. Which ingredients is spermidine commonly combined with?

Spermidine is commonly combined with NAD+ precursors such as NMN and NR, and with resveratrol, fisetin and PQQ in cellular-health and longevity stacks, pairing autophagy support with NAD+ and mitochondrial support. Compatibility and stability testing for the specific formula should be completed before scale-up, and per-serving levels reviewed against market guidance.

Q8. Is spermidine regulated as a food ingredient?

In the United States, spermidine is used as a dietary-supplement ingredient within the FDA structure/function framework. In the European Union, spermidine and wheat-germ extracts require confirmation of novel-food or established food status before food-supplement use, and assessments vary by member state. Verify the current status of each destination market before launch.

Q9. What clinical research exists on spermidine?

Published clinical studies have examined spermidine supplementation in the context of age-related cellular and cardiovascular markers, supported by a substantial body of preclinical research on autophagy and longevity. This evidence underpins its healthy-aging positioning; finished-product claims must remain within structure/function language and avoid disease claims.

Q10. How is spermidine quality verified in the laboratory?

Spermidine assay is determined by validated HPLC against a certified reference standard, with related polyamines including putrescine and spermine quantified in the same system. Identification is confirmed by retention and spectral match, chloride content by titration, and loss on drying, residual solvents by GC, heavy metals and microbial testing complete the release panel.

Q11. Is spermidine suitable for vegan and allergen-free products?

Yes. Spermidine trihydrochloride is produced by synthesis with no animal-derived inputs, and the wheat-germ extract is plant-derived, so both forms suit vegan formulations. The products are allergen-free, gluten-free, non-GMO and non-irradiated, with residual solvent and heavy-metal results conforming to USP/EP limits; these statements are documented on request.

Q12. How should spermidine be formulated and stored?

Spermidine trihydrochloride is a white crystalline powder with good water solubility, suiting capsules, tablets and stick-packs; the wheat-germ extract is a plant powder suited to capsules and pressed formats. Store sealed in a cool, dry place away from moisture and strong odors, use dust control during handling, and confirm finished-product stability with accelerated and real-time studies.

Q13. What documentation should we request when sourcing spermidine?

Request a current specification sheet and a batch Certificate of Analysis showing HPLC assay, related polyamines, loss on drying, residual solvents, heavy metals and microbial results, plus an SDS and allergen and gluten statements. Also request ISO 9001 and FSSC 22000 certificates, Kosher and Halal certificates where relevant, and stability data for registration files.

Q14. What is the MOQ, packing and lead time for spermidine from Purecium?

The minimum order quantity is 25 kg, and spermidine trihydrochloride is packed in 25 kg drums with food-grade polyethylene inner bags. Samples and full technical documentation are available before commitment. Standard production lead time is typically 10 to 20 working days after order confirmation, with US warehouse stock enabling faster dispatch for North American customers.

Q15. Why should we source spermidine from Purecium?

Purecium supplies spermidine trihydrochloride at 98% minimum HPLC purity from controlled synthesis, with a standardized wheat-germ extract available on request, and every batch is released on a full Certificate of Analysis. Production follows ISO 9001 and FSSC 22000 certified systems with Kosher and Halal certification available, the minimum order is 25 kg, and US warehouse inventory enables fast fulfillment.

Spermidine Trihydrochloride 98% Powder for Cellular Renewal

Spermidine Trihydrochloride Bulk Powder for Autophagy and Cellular-Renewal Supplement Programs
Pure Spermidine Salt at 98% HPLC from Certified Synthesis, with Wheat-Germ Extract on Request
Embodies the essence of pure, high-quality dietary supplement ingredients
Spermidine Trihydrochloride Powder (98% HPLC)
Autophagy Support Cellular-Renewal Polyamine

Spermidine
Purecium Spermidine is the naturally occurring polyamine studied for autophagy and cellular-renewal support, supplied as a B2B bulk raw material for healthy-aging and longevity-oriented supplement programs. The product is offered as spermidine trihydrochloride at 98% minimum assay by HPLC (CAS 334-50-9, formula C7H22Cl3N3, molecular weight 254.63 g/mol; free base CAS 124-20-9, C7H19N3, 145.25 g/mol) or as a naturally occurring wheat-germ extract standardized to spermidine content. Vegan, allergen-free and non-irradiated, it is packed in 25 kg drums with a 25 kg minimum order and complete COA documentation.

Product name: Spermidine Trihydrochloride (98% HPLC)
Molecular formula: C₇H₂₂Cl₃N₃
Starting material: Controlled synthesis (salt form); wheat germ (extract form)
Grade: Supplement grade (>=98% HPLC)
Heavy Metals: Conforms to USP/EP limits
Pesticide residue: Conforms to USP/EP limits
Packing size: 25kg/drum
CAS#: 334-50-9
Molecular weight: 254.63 g/mol
Source: Synthetic salt (China); wheat-germ extract on request
Specification: Spermidine trihydrochloride >=98% by HPLC; white crystalline powder
Country of origin: China
Residual solvent: Conforms to USP/EP limits
Allergen free/Gluten-free/Non-GMO/Vegan/Non-Irradiation:

Spermidine Overview

Spermidine is a naturally occurring polyamine found in all living cells and in foods such as wheat germ, aged cheese, soy and mushrooms, where it participates in fundamental cellular processes including growth, protein synthesis and the regulation of autophagy. The free base carries CAS 124-20-9, molecular formula C7H19N3 and molecular weight 145.25 g/mol, and it is supplied commercially as a stable salt such as the trihydrochloride (CAS 334-50-9, C7H22Cl3N3, 254.63 g/mol).

For the dietary-supplement industry, spermidine is used in healthy-aging and cellular-renewal products, where its most studied mechanism is the induction of autophagy, the cellular housekeeping process that recycles damaged components. Purecium supplies Spermidine as a B2B raw material at 98% minimum assay by HPLC for distributors, contract manufacturers, private-label producers and finished supplement brands, with wheat-germ extract available for botanical positioning.

Source & Ingredient Identity

Purecium supplies spermidine in two forms. The standard catalog item is spermidine trihydrochloride, a defined salt produced by controlled synthesis and purified to 98% minimum assay, which gives formulators a precise, pure active for milligram-level dosing. For label-friendly botanical positioning, a naturally occurring wheat-germ extract standardized to spermidine content is available on request, with the polyamine content confirmed by validated analysis.

The declared pure product is spermidine trihydrochloride, CAS 334-50-9, formula C7H22Cl3N3 and molecular weight 254.63 g/mol, equivalent to the free polyamine spermidine (CAS 124-20-9, C7H19N3, 145.25 g/mol). Buyers should confirm the salt form, assay basis and related-polyamine profile on the specification sheet, since spermidine content on a salt basis differs from free-base content.

Key Characteristics of Spermidine

1. Defined polyamine with an autophagy research profile. Spermidine is the polyamine most associated with autophagy induction in peer-reviewed research, a mechanism linked to cellular renewal and healthy aging. This defined biological role is the basis for its use in longevity and cellular-health products, where it is positioned as an autophagy-supporting active.

2. Precise analytical identity in the pure salt form. Spermidine trihydrochloride (C7H22Cl3N3, 254.63 g/mol) is specified by HPLC assay of at least 98%, related polyamines such as putrescine and spermine, chloride content, residual solvents, heavy metals and microbiology, giving formulators a reproducible active with clean quality control.

3. Two supply forms for different label strategies. The 98% trihydrochloride salt suits products that declare pure spermidine per serving, while the wheat-germ extract supports whole-food positioning with a naturally occurring polyamine complex. The extract is typically dosed by weight with spermidine content standardized, and buyers should choose the form that matches their label concept and regulatory review.

Spermidine Manufacturing

Spermidine trihydrochloride is manufactured by a controlled synthetic route followed by salt formation with hydrochloric acid, purification by crystallization and drying under controlled conditions, yielding the white crystalline salt at 98% minimum assay. Wheat-germ spermidine extract is produced separately by extraction and concentration of polyamine-rich wheat germ, with the spermidine content standardized by validated analysis.

Finished lots of the pure salt are tested by validated HPLC for assay and related polyamines, with identification confirmed against certified reference standards. Additional testing covers chloride content, loss on drying, residual solvents, heavy metals and microbiology, following current pharmacopeial general chapters, and results are reported on the batch Certificate of Analysis.

Applications of Spermidine

Healthy-aging and cellular-renewal formulas are the primary application of spermidine. It is used in longevity products alongside NAD+ precursors and other cellular-health actives such as NMN, resveratrol and fisetin, where its autophagy-support mechanism is the intended contribution, and published clinical studies have examined spermidine in the context of age-related cellular and cardiovascular markers.

The wheat-germ extract form serves whole-food and plant-based positioning, appearing in capsules and powders for cellular-health and wellness programs. Formulators should confirm the regulatory framework per market: in the United States spermidine is used within the FDA dietary-supplement framework, while in the European Union spermidine and wheat-germ extracts require confirmation of novel-food or traditional-food status before food-supplement use in each member state.

Manufacturing & Quality Control

Purecium Spermidine is produced in facilities operating under ISO 9001 and FSSC 22000 certified quality systems, with Kosher and Halal certification available. Every lot is tested for identity, HPLC assay of at least 98%, related polyamines, loss on drying, residual solvents, heavy metals and microbiology, and wheat-germ extract lots are additionally tested for the standardized spermidine content and botanical contaminants.

Each commercial lot is traceable from raw-material intake through synthesis or extraction to the finished drum, and every batch is released on a Certificate of Analysis documenting assay, impurity profile and physical data. Purecium also provides the specification sheet, SDS, allergen and gluten statements, non-GMO declarations and stability data on request.

Spermidine for B2B Supplement Manufacturing

Purecium supplies Spermidine exclusively as a B2B raw material for distributors, contract manufacturers, private-label producers and finished supplement brands. The minimum order quantity is 25 kg; spermidine trihydrochloride is packed in 25 kg drums with food-grade polyethylene inner bags, and samples with full documentation are available before commitment.

For North American customers, inventory is staged at Purecium's US warehouse, enabling pickup or delivery within approximately two days. Global delivery covers Hong Kong, mainland China, the EU and other regions, with export documentation prepared for every shipment, and Purecium provides specification and application guidance plus technical and regulatory communication to support formulation and registration in each destination market.

Reviewed by the Chief Quality Assurance / Regulatory Affairs Specialist at Purecium for technical accuracy and regulatory alignment.
Spermidine Frequently Asked Questions (FAQ) for B2B Buyers

Q1. What is spermidine and why is it used in supplements?
Spermidine is a naturally occurring polyamine (free base CAS 124-20-9, C7H19N3, 145.25 g/mol) found in all living cells and in foods such as wheat germ and soy. It is used in healthy-aging and cellular-renewal supplements because peer-reviewed research links it to the induction of autophagy, the cellular process that recycles damaged components. Purecium supplies it as spermidine trihydrochloride at 98% minimum assay by HPLC.
Q2. What purity and specification of spermidine does Purecium supply?
Purecium supplies spermidine trihydrochloride (CAS 334-50-9, C7H22Cl3N3, 254.63 g/mol) at 98% minimum assay by HPLC as a white crystalline powder. Each lot is tested for assay, related polyamines such as putrescine and spermine, chloride content, loss on drying, residual solvents, heavy metals and microbiology, with results on the Certificate of Analysis.
Q3. What is the difference between the pure salt and the wheat-germ extract?
Spermidine trihydrochloride is a defined synthetic salt with 98% minimum assay, used when formulators need a precise pure polyamine active with milligram-level dosing. The wheat-germ extract is a naturally occurring botanical ingredient standardized to spermidine content, used for whole-food label positioning. The two differ in spermidine concentration, dosage, label declaration and applicable regulatory review, so the choice depends on the product concept.
Q4. What does autophagy mean and how does spermidine relate to it?
Autophagy is the cellular housekeeping process through which cells recycle damaged proteins and organelles, maintaining cellular health over time. Peer-reviewed research describes spermidine as an inducer of autophagy, and this mechanism is the basis for its cellular-renewal and healthy-aging positioning in supplements. Finished-product communication should stay within structure/function language without disease claims.
Q5. How is spermidine trihydrochloride manufactured?
Spermidine trihydrochloride is produced by a controlled synthetic route, followed by salt formation with hydrochloric acid, purification by crystallization and drying under controlled conditions to yield the white crystalline salt at 98% minimum assay. The wheat-germ extract is produced separately by extraction and concentration of polyamine-rich wheat germ with standardized spermidine content.
Q6. What is the typical use level of spermidine in finished supplements?
Spermidine is typically used at doses in the range of 1 to 10 mg per day as pure spermidine base equivalent, with published clinical studies using similar magnitudes of daily intake; wheat-germ extract products are dosed by weight at much higher gram levels depending on the standardized content. Levels should be set by the brand and confirmed in stability and finished-product testing.
Q7. Which ingredients is spermidine commonly combined with?
Spermidine is commonly combined with NAD+ precursors such as NMN and NR, and with resveratrol, fisetin and PQQ in cellular-health and longevity stacks, pairing autophagy support with NAD+ and mitochondrial support. Compatibility and stability testing for the specific formula should be completed before scale-up, and per-serving levels reviewed against market guidance.
Q8. Is spermidine regulated as a food ingredient?
In the United States, spermidine is used as a dietary-supplement ingredient within the FDA structure/function framework. In the European Union, spermidine and wheat-germ extracts require confirmation of novel-food or established food status before food-supplement use, and assessments vary by member state. Verify the current status of each destination market before launch.
Q9. What clinical research exists on spermidine?
Published clinical studies have examined spermidine supplementation in the context of age-related cellular and cardiovascular markers, supported by a substantial body of preclinical research on autophagy and longevity. This evidence underpins its healthy-aging positioning; finished-product claims must remain within structure/function language and avoid disease claims.
Q10. How is spermidine quality verified in the laboratory?
Spermidine assay is determined by validated HPLC against a certified reference standard, with related polyamines including putrescine and spermine quantified in the same system. Identification is confirmed by retention and spectral match, chloride content by titration, and loss on drying, residual solvents by GC, heavy metals and microbial testing complete the release panel.
Q11. Is spermidine suitable for vegan and allergen-free products?
Yes. Spermidine trihydrochloride is produced by synthesis with no animal-derived inputs, and the wheat-germ extract is plant-derived, so both forms suit vegan formulations. The products are allergen-free, gluten-free, non-GMO and non-irradiated, with residual solvent and heavy-metal results conforming to USP/EP limits; these statements are documented on request.
Q12. How should spermidine be formulated and stored?
Spermidine trihydrochloride is a white crystalline powder with good water solubility, suiting capsules, tablets and stick-packs; the wheat-germ extract is a plant powder suited to capsules and pressed formats. Store sealed in a cool, dry place away from moisture and strong odors, use dust control during handling, and confirm finished-product stability with accelerated and real-time studies.
Q13. What documentation should we request when sourcing spermidine?
Request a current specification sheet and a batch Certificate of Analysis showing HPLC assay, related polyamines, loss on drying, residual solvents, heavy metals and microbial results, plus an SDS and allergen and gluten statements. Also request ISO 9001 and FSSC 22000 certificates, Kosher and Halal certificates where relevant, and stability data for registration files.
Q14. What is the MOQ, packing and lead time for spermidine from Purecium?
The minimum order quantity is 25 kg, and spermidine trihydrochloride is packed in 25 kg drums with food-grade polyethylene inner bags. Samples and full technical documentation are available before commitment. Standard production lead time is typically 10 to 20 working days after order confirmation, with US warehouse stock enabling faster dispatch for North American customers.
Q15. Why should we source spermidine from Purecium?
Purecium supplies spermidine trihydrochloride at 98% minimum HPLC purity from controlled synthesis, with a standardized wheat-germ extract available on request, and every batch is released on a full Certificate of Analysis. Production follows ISO 9001 and FSSC 22000 certified systems with Kosher and Halal certification available, the minimum order is 25 kg, and US warehouse inventory enables fast fulfillment.
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