Do you test heavy metals and residual solvents?

Yes. Every lot is heavy-metal screened (Pb, As, Cd, Hg, Cu (GB 2762)) and microbiologically checked (total plate count, coliforms, mould & yeast, pathogens) on the COA. If a solvent route is used, solvent residue is verified per GB 5009.262 (typically non-detect for physical routes). We do not release a lot exceeding heavy-metal, micro or solvent-residue limits. Buyers can request the specific panel and third-party verification.

This article was published on 2026-09-29, and last updated on 2026-09-29. The article will be continuously updated.

Guilin Four Seasons Sunshine

sales@essentialoilsfactory.com

86 13367530509

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. test

Do you test heavy metals and residual solvents?

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Guilin Four Seasons Sunshine

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