I buy alot from Alibaba, sometimes, I don't even buy samples, I check their history and read their feedbacks. You can easily tell when these people are scammers. Things to notice: The seller sells a variety of products (TIP: If you are buying say iPhone cases, look at the seller other products and notice their products are 80% cases) Some scammers, in search of getting as many hits, start adveristing a lot of different items to sell. From Clothes, to Phones, to tablets, to house items, just all over the place. Some, however, are not scammers are just are trading companies, the scammers are the ones who usually are selling the product 10% or more cheaper than the competitors. Another thing to notice is how they talk, from experience, scammers will try to close the deal ASAP. And go out their ways to "offer" you the best deal. Don't jump because the deal is too good true. Chance are it is too good. Some sellers are INEXPERIENCE are not scammers, just people who don't yet understand the selling process.