A shopper buys a bag that looks like a designer bag, costs a tenth of the price, and carries no logo. A second shopper buys a bag that looks the same, costs the same, and carries the logo. The first shopper bought a dupe. The second bought a counterfeit. The difference is one stitched mark, and it changes everything about what the seller, the marketplace, and the law can do.
The distinction matters because the remedies are different. A counterfeit can be reported, seized, and prosecuted. A dupe can usually only be avoided. Shoppers who cannot tell the difference buy the wrong thing and report the wrong crime.
A counterfeit is a product that uses an identical or nearly identical trademark to deceive buyers into thinking it is the genuine article. That violates the Lanham Act, 15 USC 1114, and can be a federal crime under 18 USC 2320. Statutory damages run up to 200,000 dollars per mark, and up to 2 million dollars per mark for willful infringement. A dupe copies a style, a silhouette, or a color, without the mark. Copying a style is generally legal, because style is not protected unless a design patent or trade dress covers it.
Trade dress is the exception that catches some dupes. The shape of a bottle, the red sole of a shoe, the pattern of a bag: if the shape is distinctive and identifies the source, it is protected under 15 USC 1125(a), and a dupe that copies it can be infringing. A design patent covers the ornamental design of a product for 15 years. A dupe that copies a patented design is infringing, mark or no mark.
The packaging tells first. A counterfeit usually comes in a box that is slightly wrong: the wrong weight, the wrong cardboard, a logo that is a millimeter off. A dupe comes in plain packaging, because the seller has nothing to hide. The price tells second: a counterfeit is priced to look like a deal on the genuine article, while a dupe is priced like what it is.
The listing tells third. A counterfeit listing uses the brand name in the title and the genuine product's photos. A dupe listing uses words like inspired by, similar to, or dupe, and shows the actual product. The seller who writes replica on a listing with the logo has not made the listing legal. The test is the mark, not the label.
A counterfeit gets reported. File with the marketplace, name the exact right, attach photos of the genuine and fake product side by side, and file by seller when the same seller runs a hundred listings. A dupe gets avoided, not reported, unless it crosses the trade dress or design patent line. Reporting a dupe as a counterfeit wastes the report and trains the marketplace to ignore the next one.
The safety question is separate from the legal one. A counterfeit charger that overheats, fake skincare with unlisted ingredients, or fake earbuds with a swelling battery are safety problems first and trademark problems second. Report those to the marketplace and to the regulator, because the next buyer may not know the difference.
Keep reading: The Dupe That Arrived in the Wrong Box: Packaging Tells Worth Photographing, Fake Skincare Dupes: When the Ingredient List Is the Tell, Fake Hair Tools: The Heat, the Plug, and the Fire Risk cover the nearby cases in this series.
A counterfeit uses an identical or nearly identical trademark to deceive buyers, which violates the Lanham Act and can be a crime under 18 USC 2320. A dupe copies a style, silhouette, or color without the mark, which is generally legal unless it infringes a design patent or trade dress.
Yes, if it copies protected trade dress, a design patent, or a protected silhouette like the red sole. A dupe that copies the product and adds a fake logo is not a dupe anymore. It is a counterfeit.
No. Writing replica, inspired by, or dupe on a counterfeit listing does not legalize it. The test is whether the product carries a trademark it has no right to use, and the label does not change that.
You can usually keep it. The law targets the seller, not the buyer. The risk is the product itself: fake skincare, electronics, and chargers are the categories where a dupe can be unsafe, not just fake.