Pillar I · Guerlain Batch Code Checker
Guerlain Batch Code Checker — production date decoder
LVMH Pattern · [Year digit][Month letter A–M, skipping I][Plant 2 digits] · checked privately in your browser.
LVMH Pattern · LVMH Moët Hennessy Louis Vuitton
[Year digit][Month letter A–M, skipping I][Plant 2 digits] · e.g. 4C01
Where Guerlain stamps its code: outer box base crimp + flacon base
Embossed (uninked) on the outer box base crimp and laser-etched or printed on the flacon base.
- Read the code off the box base crimp in raking light — authentic embossing has uniform depth.
- Read the flacon base or label code and enter it above — the two must match character for character.
- Check for scraped, re-embossed or stickered-over crimps: a classic way to hide aged gray-market stock.
Printable guideWhere to Find Your Code (Tap to Zoom) ↓ Download WebP
Parent Conglomerate Pattern · LVMH Moët Hennessy Louis Vuitton
How Guerlain Codes Are Structured
- Pattern
- LVMH Pattern
- Group
- LVMH Moët Hennessy Louis Vuitton
- Structure
- [Year digit][Month letter A–M, skipping I][Plant 2 digits]
- Length
- 4 characters
- Stamped On
- outer box base crimp · flacon base
- Confidence
- High — widely documented 4-character LVMH Parfums & Cosmétiques format.
Worked Decode · 4C01 → March 2024
| Sample Code | Production Date | Verdict (as of November 2026) |
|---|---|---|
| 4C01 | March 2024 | Optimal Maceration (24–36 Months for EDP/Extrait) |
| 5H12 | August 2025 | Fresh Batch (<24 Months) |
| 6B03 | February 2026 | Fresh Batch (<24 Months) |
Decodes are estimates from published code structures. A valid format never proves authenticity.
Searchable in the Decoder
Popular Guerlain Products
- Shalimar
- Mon Guerlain
- L'Homme Idéal
- Aqua Allegoria
- Habit Rouge
- Mitsouko
- L'Heure Bleue
- Vetiver Guerlain
- Orchidée Impériale
- Abeille Royale
- Terracotta Guerlain
- Météorites
- L'Art et la Matière
- Samsara
- Idylle
- La Petite Robe Noire
- Spiritueuse Double Vanille
- Rouge G
- Parure Gold
- Guerlain Les Absolus d'Orient
Section V · Formulation Audit
Audited Formulations From Guerlain
-
Abeille Royale Advanced Youth Watery Oil (Ouessant Black Bee Honey + Polyglycerin-3) →
Barrier / Peptide / Hydrator · Polyol-Honey & Encapsulated Lipid Barrier Oil-Serum
Skincare is best used within about 36 months of production and 6–12 months of opening.
Field Notes
Frequently Asked Questions
How do I decode a Guerlain batch code?
Guerlain is part of LVMH Moët Hennessy Louis Vuitton and uses the LVMH Pattern: [Year digit][Month letter A–M, skipping I][Plant 2 digits]. Worked example: 4C01 reads as 4 = 2024, C = March, 01 = Production line 01 — produced March 2024. High — widely documented 4-character LVMH Parfums & Cosmétiques format. A correctly formatted code is necessary but never sufficient proof of authenticity, because counterfeiters copy real codes.
Where is the batch code stamped on a Guerlain box and bottle?
Embossed (uninked) on the outer box base crimp and laser-etched or printed on the flacon base. Look on the outer box base crimp and the flacon base. The code on the box and the code on the flacon must match character for character; a scraped, re-embossed or stickered-over box crimp is a classic sign of aged gray-market stock.
How long does Guerlain last and where can I buy fresh-batch authentic bottles in Singapore?
Unopened and stored upright below 25°C, a Guerlain fragrance is a fresh batch for its first 24 months from production, sits in the maceration window to about 36 months for EDP and Extrait, and stays within tolerance to 60 months; past 60 months, check for darkened juice and sour or metallic top notes. Skincare and cosmetics should be used within 36 months of production. In Singapore, buy from retailers that disclose the batch code before dispatch — for example Beauty.net's labelled partner retailer Perfume.sg — or from Guerlain boutiques and authorised department-store counters.