Check the printed date on the package, bottle, or label
Look for terms like “EXP,” “Use by,” “Best before,” or “Sell by”
Check the bottom, back, cap, or seal of the product
Review the manufacturer’s website or product page
Scan the barcode or QR code if available
Contact the manufacturer or seller with the batch or lot number
Check the receipt or purchase record if the product date is not visible
Use the lot number lookup tool if the brand provides one
Compare the date format carefully to avoid confusion
Do not use the product if the expiration date is missing or unreadable