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What Ashwagandha Extract Is

Ashwagandha (Withania somnifera) is the most important adaptogen in Ayurveda, used for over 3,000 years. The B2B ingredient is a concentrated extract standardised to its signature actives, the withanolides — a family of naturally occurring steroidal lactones. The single most important sourcing fact is that the extract can be made from different parts of the plant, and the part used changes the chemistry, the withaferin A level and the cost.

SV Botanica's stock grade is a root-only dry extract standardised to 5% withanolides. We unpack why root vs leaf matters in root vs leaf extract & the withaferin A tell.

Root vs Leaf: The First Decision

Traditional ashwagandha is a root preparation. Leaf and whole-plant material are cheaper and can show a higher headline withanolide number, but they carry far more withaferin A — a cytotoxic withanolide that is desirable in some research contexts but usually minimised in a general wellness root extract. If your formula is built on the traditional root profile, specify roots only on the purchase order and, where it matters, a withaferin A limit.

Native, Standardised and the Withanolide Number

Ashwagandha extract is sold across a band of withanolide percentages — commonly 2.5%, 5% and 10%. A higher number is not automatically "better"; it reflects how concentrated and how processed the material is, and it must be read together with the assay method:

• Gravimetric assay — measures the total withanolide-rich fraction by weight. It reads higher and broader and is the common trade method for full-spectrum root grades. SV Botanica's 5% stock grade is gravimetric (5.35% w/w on the reference batch).
• HPLC assay — quantifies specific named withanolides. It reads lower for the same powder but is compound-specific and is what you want when a label or monograph names a defined profile.

The Specification That Matters

The headline figure is the withanolide percentage, but a complete spec covers identity, physical, residual and contaminant parameters too. The table below reflects SV Botanica's 5% root grade, mapped from a current batch Certificate of Analysis. Because ashwagandha extract is a botanical (not an isolated molecule), these are typical specifications — a batch-specific CoA is issued with every shipment.

The stock assay is gravimetric, but an HPLC withanolide test report is available per batch on request — the same root material reported by both methods — so buyers who need a compound-specific profile or a withaferin A figure for their incoming-goods spec are never left with the gravimetric number alone. The material is cultivated, Kosher-certified and carries a 36-month shelf life stored cool, dry and sealed. For the actives behind the number, see withanolides & ashwagandha's actives.

What a Complete Certificate of Analysis Must Show

• Identity — botanical name (Withania somnifera), plant part (roots), and identification by TLC or HPLC.
• Grade and method stated unambiguously — the withanolide % and whether it is by gravimetric or HPLC.
• Withaferin A position — for a root grade, a low or limited withaferin A is a useful authenticity signal.
• Physical parameters — appearance, loss on drying, ash, pH, bulk density, solubility, particle size / mesh.
• Heavy metals by ICP-MS — lead, arsenic, cadmium and mercury against defined ppm limits.
• Microbiology — total plate count, yeast & mould, and absence of E. coli, Salmonella and S. aureus.
• Batch traceability — batch number, manufacture and expiry dates, shelf life and storage.

The Colour & Odour Check

Genuine ashwagandha root extract is a light to dark brown fine powder with a characteristic, slightly horsey odour (the name means "smell of horse"). A pronounced green tint can indicate leaf or whole-plant material blended into a so-called root extract. Colour is not a substitute for an assay, but it is a fast first screen — back it with the CoA.

Sourcing, MOQ and Lead Time

• Origin — cultivated Withania somnifera roots, extracted and assayed in India with export-ready documentation.
• Documentation per shipment — batch-specific CoA, MSDS, allergen and Non-GMO declarations and Country of Origin certificate.
• Typical terms — 25 kg minimum order, packed in HDPE drums with food-grade liners; sample packs for qualified buyers; standard lead time on the 5% root grade.

Before market entry, confirm ashwagandha's regulatory status and contaminant limits in your destination market — we cover FSSAI, heavy-metal and labelling requirements in ashwagandha regulatory & compliance.