https://www.desidime.com/discussions/are-barcode-same-for-2-products-on-lakme-peach-milk-moisturizer-cream?page=1#post_9002501
Yes, why you think they should be different? It must represent the product category hence won't change.
Yes, why you think they should be different? It must represent the product category hence won't change.
Barcode remains same for the every product. It's unique identity of the product, not the Batch/Price/Mfg Date/etc.
i.e. For 100gm and 200gm, the barcode will be different, but all the 100gm and 200gm packages will have same barcodes respectively.