My technique to avoid fraudulent products on Amazon: click on the seller ("Sold by mucaoxikeji") which reveals... "No feedback yet - NEW SELLER" Done ! Only took 2 seconds. It's very simple: I never buy from new sellers, or from those with too few reviews (<100). You do this and honestly you avoid 99% of fraudulent products. The 1% that can hit you is cases where for example counterfeit items end up in commingled inventory, which is quite rare in my personal experience. It happened only twice—that I know of—despite spending easily $20-30k/year at Amazon.