Not all ashwagandha powder is the same. Two products with the same name can differ in plant part, purity and testing. Use this checklist to compare suppliers, whether you’re buying one pack or sourcing in bulk for a brand.
1. Check the botanical name
The label or specification should state Withania somnifera. Common names vary between countries, but the Latin name is universal and confirms you’re getting the right plant.
2. Make sure it’s root, not leaf
Traditional use centres on the root. Leaves and stems are cheaper to produce and are sometimes blended in. Look for “root” or “100% root” on the label, and ask the supplier if it isn’t clear.
3. Read the ingredients list
A pure powder should have one ingredient: ashwagandha root. Watch out for fillers such as maltodextrin or rice flour, flow agents and added sugar.
4. Ask for a certificate of analysis (CoA)
A reputable supplier tests each batch and can share a CoA. It should cover:
- Identity: confirmation that it is Withania somnifera root
- Heavy metals: lead, cadmium, arsenic and mercury within legal limits
- Microbiology: total plate count, yeast and mould, and absence of pathogens such as E. coli and Salmonella
- Batch number and date that match your pack
Some buyers also ask for pesticide residue results or the withanolide content. If a supplier can’t provide any test results, treat that as a warning sign.
5. Look at the powder itself
Good root powder is fine, even and light beige to brown, with a distinctly earthy smell. Gritty texture, damp clumps, a musty smell or a green tint (which can indicate leaf) are worth questioning.
6. Check the packaging
Powder should be sealed against moisture and light and labelled with a batch number, a best-before date, storage instructions and the supplier’s contact details.
7. Be wary of big health claims
Responsible sellers don’t promise to cure or treat medical conditions. Bold claims are a sign that a seller may not be following food and supplement regulations, and may cut corners elsewhere too.
Buying in bulk? Extra questions to ask
- What is the mesh size, and is it suitable for capsule filling?
- What is the minimum order quantity and lead time?
- Can you provide a specification sheet and a sample before ordering?
- What documents can you supply for import into my country?
- Do you offer private label packaging?
Quick checklist
- Botanical name: Withania somnifera
- 100% root
- Single ingredient, with no fillers
- Batch-tested, with a CoA available
- Fine, earthy-smelling, beige to brown powder
- Sealed pack with batch number and best-before date
- Honest, responsible claims
Our ashwagandha root powder is made to this standard, and we’re happy to share the certificate of analysis for the current batch. Request a quote or read our beginner’s guide to ashwagandha powder.
Frequently asked questions
How can I tell if ashwagandha powder is pure?
Check that the label lists Withania somnifera root as the only ingredient, with no fillers or flow agents, and ask the supplier for a certificate of analysis for your batch.
What should a certificate of analysis for ashwagandha powder include?
At minimum it should confirm botanical identity, show heavy metal results (lead, cadmium, arsenic and mercury) and microbiological testing, and carry a batch number that matches your pack.
Why does root versus leaf matter in ashwagandha powder?
Traditional use centres on the root. Leaves and stems are cheaper to produce and have a different profile, so a root-only powder is closer to how ashwagandha has traditionally been used.
How should I store ashwagandha powder?
Keep it sealed in a cool, dry place away from direct sunlight, and use it by the best-before date on the pack. Moisture and heat can affect its quality.
Pure root. Honest powder.
Looking for quality ashwagandha powder?
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