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Do you provide a Certificate of Analysis (COA) for each batch?

Yes — a Certificate of Analysis (COA) is issued for every batch of peppermint oil and travels with the shipment. It documents the measured values against the release specification and carries the batch number, production date, expiry date and the authorised QC signature.

What the COA Reports

ParameterExample value
AppearanceClear, colorless to pale yellow mobile liquid
OdourIntensely fresh mentholic-minty
Relative density (20°C)0.900-0.916
Refractive index (20°C)1.459-1.465
Optical rotation (20°C)−30° to −10°
Total menthol (GC)≥50% (USP); per GB/ISO window
Menthone / menthyl acetatePer ISO 856 ranges
Pulegone≤4% (typical far lower)
Acid value≤2.0
Solubility (70% ethanol 1:3)Clear
ISO 856 typeA or B

Additional Documents per Batch

  • GC-MS chromatogram report with component table
  • SDS in the destination language
  • IFRA 51 compliance certificate and EU allergen declaration
  • Halal/Kosher/organic certificates for the corresponding grades

Delivery and Validity

  • The COA is e-mailed in PDF form at dispatch; originals can follow with the shipping documents
  • COA and MSDS records are archived by batch for at least 5 years and can be re-issued on request
  • Destination-market reports (heavy metals, pesticide residues, 21 CFR compliance) are prepared on request

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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.