11 products, 8 with a published independent lab report. Figures come only from published reports and seller pages; “—” means we have no data, never an estimate.
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| Heavy metals (mg/kg) | Purity | Form & serving | Sellers | Caveats | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Allnutrition Ashwagandha Forte | Allnutrition | Lab verified · 2025-04-22 · Report J.S. Hamilton Poland (PCA accreditation AB 079) | 0.082 | 0.051 | < 0.0010 | 0.020 | Label: Unknown No fillers: No | Root extract, standardised 1.5% withanolides 667 mg extract (10 mg withanolides), 1 capsule | 0.33 zł/day (EU) per seller | Heavy metals incl. Pb, Cd, Hg, As | |
| Allnutrition Ashwagandha KSM-66 100 tab | Allnutrition | Lab verified · 2024-11-26 · Report GBA Polska (PCA accreditation AB 1095) | 0.088 | 0.0304 | 0.0017 | 0.032 | Label: Unknown No fillers: No | KSM-66 organic root extract + BioPerine (piperine) 200 mg KSM-66 (10 mg withanolides) + 1 mg piperine, 1 tablet | 0.52 zł/day (EU) per seller | Pb 0.088, Cd 0.030, Hg 0.0017, As 0.032 mg/kg | |
| Boost4Life Premium KSM-66 Ashwagandha | Boost4Life | Lab verified · 2025-11-13 · Report GBA Gesellschaft für Bioanalytik, Hameln (Germany) | 0.16 | 0.030 | < 0.010 | 0.077 | Label: Yes No fillers: Yes | KSM-66 root extract 5% withanolides + magnesium bisglycinate, zinc sulfate, pyridoxine HCl 600 mg KSM-66 (30 mg withanolides), 1 capsule | 1.23 lei–2.45 lei/day (EU) calculated: 73.50 lei ÷ 30–60 · 1–2 capsules a day | Pb 0.16, Cd 0.030, As 0.077 mg/kg; complies EU 2023/915 | |
| OstroVit Ashwagandha 200 tabs | OstroVit | Lab verified · 2025-08-13 · Report J.S. Hamilton Poland (PCA accreditation AB 079) | 0.045 | 0.0077 | < 0.0010 | Not tested | Label: Unknown No fillers: No | Root extract, standardised 1.5% withanolides 375 mg extract (5.63 mg withanolides), 1 tablet | €0.045/day (EU) per seller | EU OstroVit IE | Pb 0.045 mg/kg |
| Solvara Ashwagandha Root Powder | Solvara | Lab verified · Apr 2026 · Report Marfleet Analytical Services | 0.487 | 0.051 | 0.030 | 0.146 | — | — | — | UK Solvara | Pb 0.487, Cd 0.051, Hg 0.030, As 0.146 mg/kg; plus Eurofins source CoA |
| Sunday Natural Ashwagandha Complex KSM-66 | Sunday Natural | Lab verified · 2026-06-05 · Report GBA Gesellschaft für Bioanalytik, Hamburg (Germany) | Pass* | Pass* | Pass* | Not tested | Label: Yes No fillers: Yes | KSM-66 root extract 5% + magnesium citrate, zinc bisglycinate, P-5-P (B6), calcium L-methylfolate, vitamin C 2 capsules: 600 mg KSM-66 (30 mg withanolides), 75 mg Mg, 2 mg zinc, 1.4 mg B6, 400 µg folate, 40 mg vitamin C | €0.25/day (EU) calculated: €22.90 ÷ 90 · 2 capsules a day | Complies with EU 2023/915 limits for Pb, Cd, Hg; also sold in EU | |
| Sunday Natural Bio Ashwagandha KSM-66 Royal | Sunday Natural | Lab verified · 2025-10-17 · Report GBA Gesellschaft für Bioanalytik, Hamburg (Germany) | Pass* | Pass* | Pass* | Not tested | Label: Unknown No fillers: Yes | Organic KSM-66 full-spectrum root extract, 5% withanolides 500 mg (25 mg withanolides), 1 capsule | £0.17–£0.34/day (UK) calculated: £16.90 ÷ 50–100 · 1–2 capsules a day | Complies with EU 2023/915 limits for Pb, Cd, Hg; also sold in EU | |
| Together Health Ashwagandha KSM-66 500mg | Together Health | Lab verified · 2025-09-09 · Report Not named (UKAS-accredited per CoA) | Pass* | Pass* | Pass* | Pass* | Label: Unknown No fillers: Yes | KSM-66 full-spectrum root extract, 5% withanolides, <0.1% withaferin A 500 mg, 1 capsule | £0.40/day (UK) per seller | Heavy metals, microbiology; batch 49352 | |
| Nature Love Bio Ashwagandha Kapseln | Nature Love | Unverified: report outdated · Report | — | — | — | — | — | — | €0.31/day (EU) calculated: €24.99 ÷ 80 · 3 capsules a day (240 = 80 days) | EU Nature Love | Only public report is for a batch that expired 02/2025 |
| OstroVit KSM-66 Ashwagandha tablets | OstroVit | Unverified: report outdated · Report | — | — | — | — | — | — | — | EU OstroVit | Only public report dates from 2023; Pb 0.074 mg/kg |
| vit4ever Ashwagandha Extrakt | vit4ever | Unverified: report outdated · Report | — | — | — | — | — | — | — | EU vit4ever | Only public report dates from 2023; Pb 0.12 mg/kg |
Pb = lead, Cd = cadmium, Hg = mercury, As = arsenic, all in mg/kg. EU limits for food supplements: Pb 3.0, Cd 1.0, Hg 0.10. “<” means below the lab’s detection limit. Pass* = certificate states compliance without a figure. — = no data.
EU 2023/915 limits for food supplements: lead 3.0, cadmium 1.0, mercury 0.10 mg/kg. “Pass (no value)” means the certificate states compliance without a figure. Prices were seen on seller pages when checked and can change; currencies differ, so compare within one currency.
Not medical advice. Testing status can’t be bought; seller links may be affiliate links (see disclosure). Disclosure
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