A natural plant extract manufacturer and OEM/ODM partner
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How consistent is the quality from batch to batch?

We maintain strict batch-to-batch consistency through standard production procedures and full QC testing:

ParameterControl Method
Aroma & colorSensory panel vs. reference standard per batch
Melting pointGB/T 14457.3-2008
Acid/ester valueGB/T 14455.5-2008 / GB/T 14455.6-2008
GC-MS fingerprintISO 11024-1/2:2023 comparison vs. reference
Physical specsAppearance, moisture, net oil content
As a natural product, minor variations are inherent — the crop of each winter season differs slightly. We keep a reference sample from every batch for 3 years, so you can always verify the exact quality you received against subsequent batches.

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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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