Examine the text on the back of the packaging. Check for grammatical errors, misspellings, poorly laid out information, etc. Real packaging for a real perfume should ideally be grammatically correct. Spelling or grammar mistakes can indicate the mark of a counterfeit. Real packaging is made from high quality paperboard. Boxes made from thin, flimsy material are often counterfeit. Look for the barcode on the packaging. The barcode must be placed on the lowest back portion and not on the sides. Check to see if there is any excess glue or tape. Real perfume shouldn’t have any messy glue residue or extra tape inside or outside the container.