A natural plant extract manufacturer and OEM/ODM partner
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Can you support third-party laboratory testing?

Yes — we work with SGS, Intertek and other accredited labs for independent verification, on your behalf or for destination-market compliance.

Test CategoryTypical Items
Heavy metalsPb, As, Hg, Cd per cosmetic limits
PesticidesMulti-residue screening
MicrobiologyTPC, yeast & mold, pathogens
GC-MS profileAroma marker confirmation
Allergens / IFRADeclarable fragrance allergens
We can arrange sampling and testing from the production batch, share our internal data with the lab, and deliver the third-party report together with our COA. Testing for specific destination requirements (EU, US, GCC, etc.) can be planned into the production schedule so the report is ready before shipment.

List the tests and standard you need — we will quote and schedule them into your order.

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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.

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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.

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