Organic Ashwagandha Root Powder for Stress and Sleep Support Formulas
Certified Organic Withania Somnifera Powder from Controlled Cultivation
Embodies the essence of pure, high-quality dietary supplement ingredients
Ashwagandha (Organic Root Powder, Withania Somnifera)
Adaptogenic Organic Root Powder

Ashwagandha
Purecium Ashwagandha is a certified organic root powder from Withania somnifera, the adaptogenic botanical traditionally used for stress, sleep and vitality support. The whole root is dried and milled to a fine powder with no carriers or additives, and every batch is tested for botanical identity, withanolide markers (withaferin A, CAS 5119-48-2, molecular formula C28H38O6, molecular weight 470.60 g/mol), heavy metals, pesticide residues and microbial limits. Allergen-free, gluten-free, non-GMO and vegan, it is packed in 25 kg drums with a 25 kg minimum order and full documentation for B2B buyers worldwide.
Product name: Ashwagandha (Organic Root Powder)
Molecular formula: C28H38O6 (Withaferin A marker)
Starting material: Organic Withania somnifera roots (whole root milling)
Grade: Organic / Food Grade
Heavy Metals: Conforms to USP/EP limits
Pesticide residue: Conforms to USP/EP limits
Packing size: 25kg/drum
CAS#: 5119-48-2 (Withaferin A marker)
Molecular weight: 470.60 g/mol (Withaferin A)
Source: Organic cultivation, whole root powder
Specification: 100% pure organic root powder; withanolides verified per batch (HPLC)
Country of origin: China
Residual solvent: Not applicable (no solvent extraction)
Allergen free/Gluten-free/Non-GMO/Vegan/Non-Irradiation:

Ashwagandha Overview
Ashwagandha is the root of Withania somnifera, an adaptogenic botanical used for centuries in traditional wellness systems and now standardized in the supplement industry by its withanolide markers, of which withaferin A (CAS 5119-48-2, molecular formula C28H38O6, molecular weight 470.60 g/mol) is the most studied. Whole-root powder retains the full botanical profile of the root, including the natural complex of withanolides, alkaloids and other root constituents, whereas extracts concentrate specific marker fractions.
For the dietary supplement industry, ashwagandha is used in stress relief, sleep support, mood, vitality and sports recovery products. Purecium supplies certified organic ashwagandha root powder, produced from controlled organic cultivation with no carriers or additives, sold exclusively as a B2B raw material for distributors, contract manufacturers, private-label producers and finished supplement brands.
Source & Ingredient Identity
Purecium Ashwagandha is produced from Withania somnifera roots grown under certified organic cultivation, which excludes synthetic pesticides and fertilizers. The roots are harvested at maturity, washed, dried under controlled conditions and milled to a fine powder, with the botanical identity confirmed by macroscopic and microscopic examination together with HPTLC fingerprinting against authenticated reference material.
The product is a 100% pure whole-root powder with no carriers, flow agents or additives. For B2B buyers, the critical purchasing checks are the organic certification status, botanical identity confirmation, withanolide marker content on the Certificate of Analysis, and the heavy metal and pesticide profile, since roots grown in soil can accumulate lead and other metals from the environment.
Key Characteristics of Ashwagandha
1. Certified organic and 100% pure root powder. The defining characteristic of this grade is its certified organic cultivation and whole-root composition, with no carriers or additives. This supports clean-label positioning for brands requiring organic raw materials, and the powder retains the full natural profile of the root.
2. Adaptogenic botanical with studied stress and sleep support. Ashwagandha is one of the most studied adaptogenic botanicals; published clinical studies suggest support for perceived stress, sleep quality and general vitality, and the withanolide markers are the recognized standardization targets. Regulatory bodies including the NIH Office of Dietary Supplements have reviewed ashwagandha in the context of botanical supplement research.
3. Verified identity and purity. Every batch is confirmed by HPTLC fingerprint and tested for withanolides, heavy metals, pesticide residues and microbial limits. The fine powder has a characteristic earthy aroma, blends well into capsules, tablets and powders, and is allergen-free, gluten-free, non-GMO and vegan.
Ashwagandha Manufacturing
The manufacturing process begins with certified organic Withania somnifera root sourced from contracted organic farms, followed by incoming identity testing, washing, controlled low-temperature drying, and milling to a fine powder with defined particle size. No extraction solvents are used for this whole-root grade, and no carriers or additives are introduced at any stage, which preserves the natural root profile.
Each finished lot is tested for botanical identity by HPTLC fingerprint, withanolide marker content, heavy metals, pesticide residues and microbial limits, all reported on the batch Certificate of Analysis. Each lot is traceable from the organic farm lot to the finished drum, and the organic status is supported by the certification documents of the cultivation and processing chain.
Applications of Ashwagandha
Stress and sleep support is the primary application of ashwagandha. Mechanistically, the withanolides are studied for their modulation of stress-response pathways, and published clinical studies suggest improvements in perceived stress, sleep quality and general well-being at typical intakes of 300 mg to 600 mg of root powder or extract equivalents per day. Finished-product claims should follow the regulations of the destination market.
Vitality, mood and sports recovery form the second cluster. Ashwagandha is used in general vitality and energy formulas, in mood-support blends alongside other adaptogens, and in sports nutrition for recovery and strength support, where published studies suggest benefits for muscle recovery and performance. The whole-root powder suits powder blends, smoothies, capsules and tablets, and it is commonly paired with other adaptogens such as Rhodiola, or with magnesium and L-theanine in sleep formulas.
Formulators should note that ashwagandha root powder has a distinctive earthy taste and aroma, which is typically masked in capsules or balanced with flavors in powder formats. Organic positioning is a strong differentiator for clean-label brands, and the powder's fine mesh allows direct compression in tablet applications.
Manufacturing & Quality Control
Purecium Ashwagandha is produced in facilities operating under ISO 9001 and FSSC 22000 certified quality systems, with Kosher and Halal certification available. Analytical methods follow current USP-NF and European Pharmacopoeia approaches for botanical powders, with HPTLC identity confirmation and withanolide marker testing on every released batch.
Each commercial lot is fully traceable from the organic farm lot to the finished drum, and the batch is released only when identity, withanolides, heavy metals, pesticide residues and microbial results are all within specification. Alongside the CoA, Purecium provides the specification sheet, SDS, allergen and gluten statements, non-GMO declarations and organic certification documents on request.
Ashwagandha for B2B Supplement Manufacturing
Purecium supplies Ashwagandha exclusively as a B2B raw material for distributors, contract manufacturers, private-label producers and finished supplement brands. The minimum order quantity is 25 kg; the powder is packed in 25 kg drums with food-grade aluminum-foil inner bags, and samples and 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. Purecium also provides organic documentation support and technical and regulatory communication to move ashwagandha from ingredient selection to commercial formulation.
Reviewed by the Chief Quality Assurance / Regulatory Affairs Specialist at Purecium for technical accuracy and regulatory alignment.
Ashwagandha Frequently Asked Questions (FAQ) for B2B Buyers
Q1. What is ashwagandha and what is it used for in dietary supplements?
Ashwagandha is the root of Withania somnifera, an adaptogenic botanical used for stress, sleep, mood, vitality and sports recovery support. Its marker compounds are the withanolides, of which withaferin A (CAS 5119-48-2, molecular formula C28H38O6, molecular weight 470.60 g/mol) is the most studied. Purecium supplies certified organic whole-root powder, 100% pure with no carriers, as 25 kg drum B2B raw material.
Q2. What is the difference between ashwagandha root powder and ashwagandha extract?
Whole-root powder is the dried, milled root with no concentration step, retaining the full natural profile of the botanical, with naturally occurring withanolide levels. Extract concentrates the withanolide fraction to a declared percentage, typically 2.5% or 5%, using solvent extraction. Root powder suits organic, clean-label and whole-food positioning; extract suits standardized marker dosing. Purecium supplies organic whole-root powder, with withanolide content reported on each CoA.
Q3. How is ashwagandha standardized if it is a whole-root powder?
Whole-root powder is not concentrated, so it is characterized rather than adjusted to a high marker percentage. Purecium confirms botanical identity by HPTLC fingerprint against authenticated reference material and reports the withanolide marker content on the batch Certificate of Analysis, so buyers know the natural marker level in each lot. This is the appropriate quality approach for non-extract botanical powders.
Q4. How does ashwagandha support stress and sleep?
The withanolides in ashwagandha are studied for their modulation of stress-response pathways, including effects on cortisol-related signaling. Published clinical studies suggest that daily intake of ashwagandha supports perceived stress reduction, improved sleep quality and general well-being at typical servings of 300 mg to 600 mg. These mechanisms are described in the biomedical literature, and finished-product claims should follow destination-market regulations.
Q5. What withanolide content should I expect in organic root powder?
Whole-root powder contains naturally occurring withanolides at the levels present in the root, which are lower than in concentrated extracts and vary by harvest. Purecium tests every batch and reports the withanolide content on the Certificate of Analysis. If your label requires a guaranteed minimum withanolide percentage, an extract grade standardized to 2.5% or 5% is the appropriate form, and Purecium can advise on the trade-off.
Q6. Is ashwagandha organic certified?
Yes. Purecium's ashwagandha is grown under certified organic cultivation, which excludes synthetic pesticides and fertilizers, and the organic status is supported by the certification documents of the cultivation and processing chain. Organic documentation is provided with each shipment for clean-label and organic-labeled finished products.
Q7. Why are heavy metals and pesticide residues critical for ashwagandha powder?
Ashwagandha is a soil-grown root crop, and roots can accumulate lead, cadmium and other heavy metals from the environment; conventionally grown roots may also carry pesticide residues. Because the whole root is milled into the final powder, these contaminants pass directly into the product. Buyers should require heavy-metal and pesticide testing to USP/EP limits on the CoA. Purecium tests every batch and supplies full reports on request.
Q8. How is botanical identity verified for ashwagandha?
Identity is confirmed by macroscopic and microscopic examination of the root powder together with HPTLC fingerprinting against authenticated Withania somnifera reference material. This is the recognized approach for botanical identity per current USP-NF and European Pharmacopoeia methodology and is the key defense against adulteration, where other Withania species or root material can be substituted.
Q9. What are the typical applications of ashwagandha in finished products?
Ashwagandha is used in stress relief and adaptogen blends, sleep support formulas, mood and vitality products, and sports nutrition for recovery and strength support. Typical servings are 300 mg to 600 mg per day. It pairs well with other adaptogens such as Rhodiola, and with magnesium, L-theanine or lemon balm in sleep formulas. The earthy taste is typically masked in capsules or flavored in powder formats.
Q10. Can ashwagandha be combined with other ingredients?
Yes. Common pairings are magnesium and L-theanine for sleep formulas, Rhodiola and other adaptogens for stress blends, and amino acids or botanicals for sports recovery products. The powder blends well into capsules, tablets and powder formats. Formulators should verify ingredient compatibility and note that the distinctive earthy aroma of root powder should be balanced in organoleptically sensitive products.
Q11. Is ashwagandha vegan?
Yes. Purecium's organic ashwagandha root powder is derived entirely from plant material with no animal-derived inputs, carriers or processing aids. It carries clear vegan, non-GMO, allergen-free and gluten-free statements and is suitable for vegan and vegetarian formulations.
Q12. What quality documentation should I request when sourcing ashwagandha?
Request a current specification sheet, a batch-specific Certificate of Analysis showing identification, withanolide marker content, heavy metals, pesticide residues and microbial results, an SDS, allergen and gluten statements, and non-GMO declarations. Also request the organic certification documents, Kosher and Halal certificates, ISO 9001 and FSSC 22000 certificates, and stability data for registration.
Q13. What is the MOQ and lead time for ashwagandha from Purecium?
The minimum order quantity is 25 kg. The powder is packed in 25 kg drums with food-grade aluminum-foil inner bags, and samples and technical documentation are available before you commit. Standard production lead time is typically 7 to 15 working days after order confirmation, with faster dispatch for stocked items. For North American customers, Purecium holds inventory at its US warehouse, enabling pickup or delivery within approximately two days.
Q14. How should ashwagandha powder be stored, and what is the shelf life?
Store in tightly sealed original containers in a cool, dry place below 25 degrees Celsius, protected from moisture and light. The powder is stable under these conditions, and shelf life is generally 36 months from the date of manufacture. Each shipment's CoA states the production date and expiry date for inventory planning.
Q15. Why should we source ashwagandha from Purecium?
Purecium supplies certified organic ashwagandha root powder with HPTLC-verified botanical identity and withanolide testing on every batch, produced from controlled organic cultivation in ISO 9001 and FSSC 22000 certified facilities with Kosher and Halal certification available. Every batch is released with a full Certificate of Analysis including heavy metal, pesticide and microbial results, an SDS, organic certification documents and supporting documentation. The minimum order is 25 kg, inventory is staged at our US warehouse for two-day pickup, and global delivery covers Hong Kong, mainland China, the EU and beyond. For long-term supply relationships, Purecium provides consistent quality, batch traceability, regulatory documents and direct technical communication.
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