Does the Hand Wash's 36-month period start when I open it?
The listed period for Jeju Green Tea Hand Wash is 36 months from manufacture, not 36 months after opening. Follow the dates and any additional directions on your own bottle.
Osulloc Skincare Batch and Date Guide
Osulloc's Jeju Green Tea skincare includes Hand Wash, Hand Lotion and Sheet Mask. Start with the complete cosmetic product name, not just the Osulloc logo shared with the tea range.
Osulloc FAQ
Can I use an Osulloc tea expiry rule for skincare?
No. Tea and cosmetics are different products even under the same brand. Use the cosmetic's own label and instructions, not the date information from a tea tin.
Should I leave the Jeju Green Tea Sheet Mask on overnight?
No. Its directions specify removing the sheet after 10–20 minutes and patting in the remaining essence. This wearing time is separate from the packaged product's use-by date.
Osulloc hand care and sheet-mask dates
Before you rely on the decoded date
- Hand Wash and Hand Lotion both come in 295 ml bottles. When recording a set, keep the wash and lotion labels separate; equal bottle sizes do not identify the same contents or batch.
- For a mask multipack, retain the individual sachet along with its box until you have recorded the marking and printed date. The number of sheets on the outer pack is a purchase quantity, not a production identifier.
Common lookup mistakes
- On Korean packaging, distinguish 제조일 (manufacture date) from 사용기한 (use-by date). Copy the label beside a date, not just the digits, so the two dates are not reversed.
- Before putting hand care beside the sink, photograph each bottle's identifying label. For masks, capture the sachet before tearing through any printed information.
What to check next for Osulloc
For Osulloc, combine the decoded date with product type, PAO, storage, and seller context before deciding whether to open, keep, replace, or buy.
Understand what the checker can prove
See how Lot Date estimates production timing, where precision drops, and when official packaging should override the result.
Read methodologyMake sure you are reading the right string
Use a locating guide before retrying if the printed code is faint, split across the box and bottle, or easy to confuse with barcode data.
Open guide: How to Find Cosmetic Batch Codes and Lot Numbers on PackagingTurn the decoded date into a safer use decision
Use an expiry guide when production timing alone is not enough to decide whether to open, keep, or replace the product.
Open guide: How to Check Cosmetic Expiry Date from Batch Code, PAO, and PackagingCheck seller, storage, and authenticity signals
Use a risk guide when the item comes from marketplace stock, duty-free inventory, resale, or a seller you do not fully trust.
Open guide: Does a Batch Code Prove Authenticity? Can a Cosmetic Code Be Fake?Osulloc lot, expiry, and packaging checks
Continue with the check that matches the product: find the lot number, review expiry or PAO, separate the batch code from the barcode, or assess sunscreen and fragrance more carefully.
Cosmetic Batch Code Lookup: Find the Right Code
Find the cosmetic batch code on your box, bottle or tube. Separate the lot from barcodes and shade numbers, then choose the brand to check production.
Cosmetic Batch Code Lookup: Find the Right CodeCosmetic Lot Number Search | Find a Lot Code by Brand
Find and copy the cosmetic lot number from your tube, jar or box. Keep kit components separate, then select the brand in Lot Date to check production.
Cosmetic Lot Number Search | Find a Lot Code by BrandCosmetic Expiration & Expiry Date Checker
Read a cosmetic expiration date or PAO symbol. Compare sunscreen, jelly and opened skincare labels, then check the batch code for production age.
Cosmetic Expiration & Expiry Date CheckerCosmetic Expiry Date from Batch Number
Enter a cosmetic batch number with its brand to check production age. Follow the result with product-specific expiry, unopened-life and PAO instructions.
Cosmetic Expiry Date from Batch NumberCompare related brands
Read next for this brand
- What to Do When the Batch Code Result Conflicts with Your Purchase Date
- How to Check Cosmetic Expiry Date from Batch Code, PAO, and Packaging
- How to Find Cosmetic Batch Codes and Lot Numbers on Packaging
- What If There Is No Batch Code on the Cosmetic Package?
- Cosmetic Production Date Meaning: MFG, Expiry & PAO
- Why a Cosmetic Batch Code Is Not Found — What to Check Next
- Why Your Batch Code Result Shows Only Year and Month
- Why the Box Code and Bottle Code Can Be Different
Track opened products in the app
Use the app to save results, manage opened dates, and avoid losing track of older backups.