Pillar I · SK-II Batch Code Checker
SK-II Batch Code Checker — production date decoder
SK-II (P&G Prestige) Pattern · [Year digit][Julian day 001–366][Plant ID 6 digits, 2118xx] · checked privately in your browser.
SK-II (P&G Prestige) Pattern · Procter & Gamble Prestige
[Year digit][Julian day 001–366][Plant ID 6 digits, 2118xx] · e.g. 4092211800
Where SK-II stamps its code: outer box base crimp + flacon base
10-digit code printed on the box base and inkjet-printed on the bottle 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 · Procter & Gamble Prestige
How SK-II Codes Are Structured
- Pattern
- SK-II (P&G Prestige) Pattern
- Group
- Procter & Gamble Prestige
- Structure
- [Year digit][Julian day 001–366][Plant ID 6 digits, 2118xx]
- Length
- 10 characters
- Stamped On
- outer box base crimp · flacon base
- Confidence
- High — P&G 10-digit nano-code with Julian day and plant ID.
Worked Decode · 4092211800 → April 1, 2024
| Sample Code | Production Date | Verdict (as of November 2026) |
|---|---|---|
| 4092211800 | April 1, 2024 | Within Shelf Life (24–36 Months) — Use Promptly |
| 5210211803 | July 29, 2025 | Fresh Batch (<24 Months) |
| 6031211811 | January 31, 2026 | Fresh Batch (<24 Months) |
Decodes are estimates from published code structures. A valid format never proves authenticity.
Searchable in the Decoder
Popular SK-II Products
- SKII
- SK II
- SK-2
- Facial Treatment Essence
- SK-II Facial Treatment Essence
- FTE
- Pitera Essence
- Pitera
- Facial Treatment Clear Lotion
- Skinpower
- Skinpower Advanced Cream
- LXP
- GenOptics
- Facial Treatment Mask
- Stempower
- R.N.A. Power
- RNA Power
- Cellumination
- Mid-Day Miracle Essence
Section V · Formulation Audit
Audited Formulations From SK-II
-
Facial Treatment Essence (90%+ Pitera™ Galactomyces Ferment Filtrate) →
Barrier / Peptide / Hydrator · Galactomyces Ferment (Pitera™) Barrier Essence
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 SK-II batch code?
SK-II is part of Procter & Gamble Prestige and uses the SK-II (P&G Prestige) Pattern: [Year digit][Julian day 001–366][Plant ID 6 digits, 2118xx]. Worked example: 4092211800 reads as 4 = 2024, 092 = Day 92, 211800 = P&G Prestige plant 2118 (Shiga, Japan) — produced April 1, 2024. High — P&G 10-digit nano-code with Julian day and plant ID. 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 SK-II box and bottle?
10-digit code printed on the box base and inkjet-printed on the bottle 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 SK-II last and where can I buy fresh-batch authentic products in Singapore?
Unopened, SK-II skincare is a fresh batch for 24 months from production and should be used within about 36 months, as vitamin C, retinoids and peptides degrade with time. In Singapore, buy from SK-II authorised counters and the brand's official online store, and check that the decoded production date is recent before you pay.