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How is microbial safety maintained without preservatives?

Microbial safety is secured at production and maintained through packaging hygiene:

ControlMeasure
DistillationHigh-temperature steam kills vegetative cells
Cooling & fillingClosed sterile loop, immediate filling
PackagingSealed PET/aluminum, tamper-proof closure
QC releaseMicrobiological testing per batch (TPC, yeast, mold, pathogens)
Low pHpH 4.0–5.8 naturally inhibits microbial growth
Cold chain optionRefrigerated storage and transport available
The low natural pH, high water activity control via sealed packing and clean production environment together make the product stable within its 24-month shelf life. Every batch is released only after passing microbial limits.

Request the microbiological test report with your COA package.

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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.