Enter a cosmetic batch code, lot code, or lot number and select its brand. Lot Date's cosmetic calculator estimates the production date and helps you interpret expiry and freshness. Follow the product's printed expiration date and period-after-opening (PAO) label when deciding what to use.
Lot Date supports batch code, lot number, expiry, and freshness lookup for 3573 cosmetics, skincare, fragrance, and personal care brands. Start with a supported brand below, or browse the full brand directory.
From Sep 13, 2026 through Oct 10, 2026, the website recorded anonymous lookup attempts across 1,739 supported cosmetic brands. This is an aggregate count of brands with activity, not a count of unique visitors or successful decodes, and it does not establish authenticity, safety, product quality, or market share.
It reads the selected brand's batch code, lot code, or lot number to estimate production timing. Lot Date then adds expiry and freshness context, while the PAO symbol, any printed date, storage history, and product condition remain separate checks.
Choose the brand first, then enter the manufacturing batch code or lot number exactly as printed, including letters, leading zeroes and separators. Do not use the barcode, shade number, product reference or store label.
Select the brand and enter its batch number in the checker above to get manufacturing-date context. Next read any printed expiration and the product's unopened shelf-life guidance. After opening, use the PAO and your opening date as well; a batch number does not record when you opened the product.
Look for a PAO open-jar symbol and the product's storage directions. A manufacturing date helps establish product age, but there is no single expiry period for every cosmetic. If neither a date nor usable guidance is present, ask the brand about the exact product and lot.
These terms commonly refer to the identifier for a production batch. Use the manufacturing-lot mark on the package, not the retail barcode; a lot number can contain letters as well as numbers.
Some cosmetic brands do not encode an exact day in the batch code, so month-level output is normal. In that case, use the result together with the PAO symbol, your purchase date, and the current condition of the product.
First recheck the selected brand and each printed character. If the result still conflicts with your purchase or the label, keep the original code and ask the brand with the product and packaging details. Do not change characters just to obtain a preferred date.
Inspect the carton base and flap, bottle or jar base, tube crimp and label edges. Identify the manufacturing lot from the packaging label; length alone does not distinguish it from a barcode, shade, SKU or regulatory number.
Yes. Sort similar products by likely production timing, open the older ones first, and avoid adding backups when you already have near-edge stock. This works best when you also record the month each product was opened.
No. Batch-code decoding is a freshness signal, not proof of safety or authenticity. You still need to check seller reliability, packaging quality, PAO guidance, storage history, and any changes in smell, color, or texture.
Most cosmetics sold in the United States are not required to carry an expiration date, while products regulated as drugs—such as many sunscreens and acne treatments—can follow different labeling rules. Use a printed expiration date first when one is present.
To look up a manufacturing date, first identify the batch or lot marking on the original container or carton. Keep it separate from the retail barcode, shade name and PAO symbol, then copy every character as printed.
Cosmetic batch codes are often stamped on the box bottom, bottle base, tube crimp, compact back, jar bottom, cap edge, pump collar, label edge, or outer seal. Fragrance bottles often hide the code on the glass base, while skincare jars may place it near the bottom sticker.
A batch code is the production-lot identifier printed by the brand. It is not the EAN/UPC barcode, not the product shade name, not a long compliance code block, not a price sticker, and not the retailer's order or inventory label.
