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How are heavy metals and pesticide residues tested in this Astragalus root oil?

Every batch is tested for heavy metals and pesticide residues by ICP-MS and GC-MS against ChP 2020 limits.

Test Limits (ChP 2020 / GB 2763-based)

ParameterLimitMethod
Lead (Pb)≤5 mg/kgICP-MS, ChP 2302
Cadmium (Cd)≤0.3 mg/kgICP-MS, ChP 2302
Arsenic (As)≤2 mg/kgICP-MS, ChP 2302
Mercury (Hg)≤0.2 mg/kgICP-MS, ChP 2302
Copper (Cu)≤20 mg/kgICP-MS, ChP 2302
BHC (total)≤0.2 mg/kgGC-MS, ChP 2203
DDT (total)≤0.2 mg/kgGC-MS, ChP 2203
Pentachloronitrobenzene≤0.1 mg/kgGC-MS, ChP 2203
  • Typical measured values are far below the limits; Dao-di GAP bases also undergo soil and irrigation water screening
  • Additional EU 396/2005 or FDA-market pesticide panels can be run on request (GLP lab, third-party report)

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Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands.