FAQ Header

How do you handle complaints about perilla leaf oil quality?

We respond to quality complaints within 24 hours and resolve them within 15 working days through a documented root-cause process: review → retest → rework or replacement.

Complaint Handling Process

StepActionTime
1. ReceiptDedicated quality hotline/email; log complaintSame day
2. ResponseConfirm receipt, request batch info & photos/samples≤ 24 h
3. InvestigationBatch record review + COA/GC-MS comparison; third-party retest if needed3–7 days
4. ResolutionRework, replacement, or refund per agreement≤ 15 working days
5. PreventionCorrective action shared; CAPA report on requestOngoing
  • Claims require batch number, photos, and retained samples from both sides
  • Common issues (odor drift, color change) are usually traced to transport/storage — we provide guidance and documentation
  • Long-term partners receive a simplified claims process and priority handling

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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.