Ashwagandha Extract

Also known as: withania somnifera

About bulk Ashwagandha Extract

Ashwagandha Extract is supplied as a Withania somnifera extract powder in three grades: two standardized to total withanolides, at a minimum of 1.5% and of 2.5% by HPLC, and a root extract at a 10:1 ratio. It is sold in bulk by the kilogram, with pound and gram conversions available for quoting, and every lot is batch-numbered, so the grade, the assay and the ratio can all be traced back to a specific certificate. Buyers comparing bulk ashwagandha offers are usually weighing the same things: the withanolide figure and the method behind it, the extract ratio, the plant part, and whether those figures belong to the lot actually being offered rather than to a generic data sheet. Ask us to quote and you receive the specification together with the current lot's certificate of analysis, so each of them can be checked against real material before a purchase order is raised.

Ashwagandha Extract specifications

Ashwagandha Extract specifications
AssayTotal withanolides min. 1.5% / min. 2.5% (by grade)
Test methodHPLC (withanolide grades)
Extract ratio10:1 (extract-ratio grade)
Botanical sourceWithania somnifera
Plant partRoot (10:1 grade)
FormPowder
Particle sizeMin. 90% through 80 mesh (10:1 grade) / min. 85% through 80 mesh (withanolide grades)
Loss on dryingNMT 5.0% (10:1 grade) / NMT 6% (withanolide grades)
Heavy metalsNMT 10 ppm total (10:1 grade)
MicrobiologyE. coli, Salmonella, S. aureus: negative
Unit of saleKg
Alternate order unitslb, g
Lot traceabilityBatch-tracked

Specifications are taken from our own shipping and quality records. Figures are confirmed against the batch certificate of analysis at the time of quotation.

Available grades

  • Standardized extract - total withanolides min. 1.5% by HPLC
  • Standardized extract - total withanolides min. 2.5% by HPLC
  • Root extract 10:1

Grades are not interchangeable. Tell us which one your specification calls for.

Formulating with Ashwagandha Extract

All three grades are supplied as a dry powder and are used in capsules, tablets, dry powder blends, stick-pack powders and gummies. The material is normally taken in at the blending stage; if it has to sit inside an existing blend or a particular dosage form, send that form and your target inclusion level with the enquiry and we will check the current lot against it before quoting. The grades are not interchangeable on a weight basis. The standardized grades are specified by their withanolide content and the 10:1 grade by its extract ratio, and the two standardized grades differ from each other, so a formula built on one should not be filled with another. State the grade your specification calls for when you request a quote; the plant part for the standardized grades is stated per lot on the certificate of analysis, alongside the assay, loss on drying, heavy metals and microbiology.

Sourcing and quality control

The 2.5% withanolide grade is held in U.S. stock and ships from our domestic warehouse network, which means a domestic lead time and domestic freight terms rather than an ocean booking and a customs entry. The 1.5% and 10:1 grades are quoted with their lead time confirmed at the time of enquiry. Each lot carries its own batch number, and we supply that lot's certificate of analysis with the shipment or on request, so the assay or ratio, particle size, loss on drying and microbiology tie back to the material in front of you rather than to a generic specification. On repeat orders the same batch numbering lets you set one delivery against the last and trace a finished-goods batch back to the ashwagandha that went into it. We source through vetted, cGMP-compliant manufacturing partners.

Frequently asked questions

What withanolide levels is bulk ashwagandha extract supplied at?

Two standardized grades are supplied, at a minimum of 1.5% and of 2.5% total withanolides, both assayed by HPLC. The figure is confirmed against the certificate of analysis for the lot being offered at the time we quote.

Do you also supply a non-standardized ashwagandha root extract?

Yes. A root extract is supplied at a 10:1 extract ratio. It is specified by ratio rather than by withanolide content, so it is not interchangeable with the standardized grades on a weight basis.

Is a certificate of analysis provided with each lot?

Yes. Every lot is batch-numbered, and we supply that lot's certificate of analysis with the shipment or on request. It covers the assay or ratio, particle size, loss on drying and microbiology, and it states the plant part.

How is bulk ashwagandha extract sold and quoted?

It is sold in bulk by the kilogram, with pound and gram conversions available for quoting. Send the grade, quantity, delivery location and target delivery date, and we will confirm availability, documentation and lead time in the quotation.

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Request wholesale pricing and documentation

Send us your target specification, volume and timeline. We will confirm availability, documentation and lead time.