Do you provide a Certificate of Analysis (COA) with every batch?

Every batch ships with a full COA: identity fingerprint (GC-MS), physicochemicals (density, RI, acid value), marker content (panaxynol, β-elemene, ginsenosides Rg1/Re/Rb1), heavy metals, pesticides and microbiology.

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

Guilin Four Seasons Sunshine

sales@essentialoilsfactory.com

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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.

Do you provide a Certificate of Analysis (COA) with every batch?

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