Before you start
Use a clear surface and good light. Keep the product with its original carton if you still have it. You are looking for a manufacturing marking, not trying to open the product or expose its contents.
If the package is sealed, inspect only accessible exterior surfaces. Do not remove seals or dismantle a container just to search for a code. The visual batch-code guide gives a quick orientation; the sequence below helps you work through each package type.
Bottles and jars
- Look across the base and around its rim. A marking may be on the surface or on a label attached to it.
- Rotate the container and check the back label and the space near its edge.
- Photograph the base from two angles if glass, a curve or reflection makes characters difficult to distinguish.
Support the container securely. Do not hold an open jar upside down. A number moulded into glass can be a packaging identifier; do not assume every raised number is the batch code.
Tubes and squeeze packaging
Inspect the crimp: the flattened, sealed end opposite the cap. Look at both faces of that sealed strip. Then inspect the back of the tube near the bottom of its printed artwork.
Do not unfold the crimp, squeeze out product or cut the tube. If letters sit across a ridge, take several photographs while changing the light angle, keeping the tube still.
Boxes and cartons
Check the bottom, side panels and the area beside the barcode. The batch number may be a separate stamp or indentation rather than part of the main colour printing.
If a carton is already open, you can inspect accessible flaps without tearing them. Keep the box and container markings separately in your notes. If they differ, ask the brand what each identifies instead of choosing the string that gives the most convenient result.
Compacts, sticks and small packs
Inspect the underside sticker, base and exposed label edges. Check an original outer carton or gift-set sleeve when the item itself has little space for information.
Do not lift a powder pan, prise out a mirror, remove a label or disassemble a twist-up mechanism. For a sample, mini or refill, retain the wrapper and identify which piece it came from. Do not assume a gift-set code applies to every item inside.
For spray fragrance bottles, continue with the perfume batch-code guide.
Record the marking and choose your next step
Take one close-up and one wider photo that shows the product and the code's position. Write down spaces, line breaks and nearby words such as LOT or EXP. Compare it with other package identifiers.
If the code is faint, use the unreadable-code guide. If you can read it but the tool rejects it, follow batch code not found. If there is no accessible marking, send the brand the packaging details rather than damaging the package to look further.
Sources and scope
Cosmetics Europe: Understanding the label
European industry guidance on batch identification, label dates and the open-jar symbol; it does not publish decoding rules.
Sources support the labelling and shelf-life context. The inspection steps and enquiry template are practical guidance from CosmeticBatchTool, not manufacturer confirmation of an individual item.