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What heavy-metal and pesticide-residue testing is performed on this oil?

Every batch is tested for lead, cadmium, arsenic and mercury against ChP 2020 limits (Pb ≤5, Cd ≤0.3, As ≤2, Hg ≤0.2 ppm), with pesticide residues screened per ChP 2303 on request.

Heavy Metal & Pesticide Limits

AnalyteLimit (ChP 2020)
Lead (Pb)≤5 ppm
Cadmium (Cd)≤0.3 ppm
Arsenic (As)≤2 ppm
Mercury (Hg)≤0.2 ppm
  • The Dao-di Min County sourcing region has low background soil contamination; roots are washed and graded before extraction
  • Pesticide-residue screening (organochlorine, organophosphorus, pyrethroid) per ChP 2303 available on request
  • CO2-extracted batches carry additional residual-solvent checks per GB/T 5009
  • Cosmetic-grade deliveries can be accompanied by a CPSR-ready heavy-metal dossier

Tell us your market's limit table (EU, US, Japan) and we will align the test panel accordingly.

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This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.