OXY Batch Code Checker
by Rohto
Enter your OXY batch code below to instantly decode the manufacture date, product age, and estimated expiration date — free and private.
- Manufacturer
- Rohto
- Typical shelf life
- 36 months
- After opening (PAO)
- 12 months
- Decoder
- a manufacturer-specific code scheme
How OXY batch codes work
Once we read the manufacture date, we estimate freshness using OXY's typical 36-month shelf life for skincare products. Remember that the period-after-opening (about 12 months) becomes the limit once you start using the product.
You'll sometimes see this tool called a OXY batch code decoder, OXY batch code checker, or OXY batch code calculator — they all do the same thing: read the production code and tell you how fresh your OXY skincare is.
Where is the batch code on OXY products?
Look for a short stamped, embossed or ink-jet code — usually on the base of the bottle or jar, the crimp at the end of a tube, or the bottom or flap of the box. On OXY skincare it is separate from the barcode and typically 3–8 characters of letters and numbers.
How should I store OXY skincare to keep it fresh?
Keep it out of direct sunlight and away from heat, and close caps tightly. Bathrooms get humid, so a cool, dry drawer is better — especially for active ingredients like vitamin C, retinol or acids, which oxidise faster once exposed to air and light.
Can a batch code tell me if my OXY is fake?
A batch code decoder reads the production date — on its own it can't prove a product is genuine. But a OXY code that won't decode, or a date that doesn't match when or where you bought it, can be a red flag. For authenticity, also check the packaging, seals and font, and buy from authorised Rohto retailers.
OXY — FAQ
What's the difference between the OXY batch code and the barcode?
The barcode is the long striped EAN/UPC number used at checkout and is the same for every unit of a product. The OXY batch code is a short production code that changes with each manufacturing run and encodes when the item was made — that's the one this tool decodes.
How do I know if my OXY product is expired?
Enter your OXY batch code above to get the manufacture date, then compare it to the typical 36-month unopened shelf life. If more time has passed than that — or more than about 12 months since you opened it — treat the product as expired, especially if the texture, colour or smell has changed.
How long do unopened OXY products last?
Unopened OXY skincare typically stays good for about 36 months from the manufacture date when stored properly. This is an industry estimate — OXY does not print a hard expiry date on most items, which is why the batch code matters.
How long does OXY last after opening (PAO)?
Once opened, OXY skincare should generally be used within about 12 months — this is the Period After Opening, shown as the open-jar symbol (e.g. 12M) on the packaging. After you open a product, the PAO becomes the limit even if the batch itself is still fresh.
What does the open-jar (PAO) symbol on OXY mean?
The little open-jar icon with a number and an "M" (for months) is the Period After Opening. For most OXY skincare it's around 12M, meaning roughly 12 months of safe use from the day you first open it. The batch code tells you how fresh it was before opening; the PAO tells you how long it lasts after.
Can I still use OXY after the expiration date?
Using OXY skincare shortly past its estimated date is usually a cosmetic-quality issue rather than a safety one — actives lose potency, textures separate and fragrances fade. Stop using it if you notice a change in smell, colour or consistency, and never use eye or lip products that are old, as bacteria risk is higher.