Melatonin comparison: lab tests, heavy metals and price (UK + EU)
5 products, 1 lab verified: a current independent lab report we have checked. Others have an outdated report, reporting limits too high to be useful, or no report. Figures come only from published reports and seller pages; “—” means we have no data, never an estimate.
PLENUM/UBF CoA uses coarse LOQs at/near EU limits — Partial, not Lab verified.
Sample sent in by the brand: check the batch number on your pack.
Heavy-metal colours:0.01 Well under the EU limit (below half) or below detection▲1.6 Near the EU limit (half the limit up to the limit)■3.2 Over the EU limit0.30 Grey: no EU limit (arsenic), not tested, or the lab’s reporting limit is above the EU limitEU 2023/915 limits for food supplements: lead (Pb) 3.0, cadmium (Cd) 1.0, mercury (Hg) 0.10 mg/kg. Values in mg/kg. NT = not tested; c = calculated by us from µg per serving.
Pb = lead, Cd = cadmium, Hg = mercury, As = arsenic, all in mg/kg. “<” means below the lab’s detection limit. Pass* = certificate states compliance without a figure. — = no data. Label match = the lab measured the active content against the label. The lab name, full notes and per-serving details are on each product page.
PbPass* (certificate states compliance, no figure)Cd<0.05 (well under the EU limit or below detection)Hg<0.005 (well under the EU limit or below detection)As<0.5 (well under the EU limit or below detection)
PLENUM/UBF CoA uses coarse LOQs at/near EU limits — Partial, not Lab verified.
Sample sent in by the brand: check the batch number on your pack.
Heavy-metal colours:0.01 Well under the EU limit (below half) or below detection▲1.6 Near the EU limit (half the limit up to the limit)■3.2 Over the EU limit0.30 Grey: no EU limit (arsenic), not tested, or the lab’s reporting limit is above the EU limitEU 2023/915 limits for food supplements: lead (Pb) 3.0, cadmium (Cd) 1.0, mercury (Hg) 0.10 mg/kg. Values in mg/kg. NT = not tested; c = calculated by us from µg per serving.
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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