即使Amazon上面标注出售商家是Amazon.com，你也很有可能收到假货。Amazon的库存并不区分自己的库存和那些代管的库存。你收到的产品可能是那些不法经销商的假货库存。从B&H或者Adorama买比较放心。这些Amazon都有公开信息，只不过很多人不会看到这么仔细。
By default, Amazon does not segregate FBA inventory by seller—even Amazon’s own stock can be pooled together with third-party sellers’ units for the same product. This is known as “commingled inventory,” where items sharing the same UPC/EAN/ISBN (or ASIN) are mixed in Amazon’s fulfillment centers and picked interchangeably when orders are placed .
Amazon’s first-party (1P) vendor inventory—marked “Ships from and sold by Amazon.com”—is managed separately through Vendor Central and isn’t part of the FBA commingling pool. However, any inventory (even Amazon’s) that enters FBA under manufacturer barcodes (i.e. stickerless, commingled inventory) will be mixed with identical items from other sellers . Sellers who opt out of commingling by applying Amazon-issued FNSKU labels instead of using the manufacturer barcode keep their units in dedicated, non-commingled bins.
Because of commingling, you can end up receiving a counterfeit unit from another seller’s batch—even if a listing shows “Sold by Amazon.com.” Fake products slip in when pooled stock isn’t uniquely labeled, and Amazon’s system can’t distinguish which merchant originally supplied that particular unit .
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“Stickerless, commingled inventory” (units pooled by manufacturer barcode, not by seller):
https://sellercentral.amazon.com/seller-forums/discussions/t/00d44f01-bf57-4215-9a18-8660ec840c0f -
“Sold by Amazon” vs. third-party FBA sellers (vendor-managed stock kept separate):
https://sellercentral.amazon.com/seller-forums/discussions/t/6621883a-1626-4ce4-8288-1b136cf15ffe -
Using manufacturer barcodes (UPC/EAN) creates commingled inventory:
https://sellercentral.amazon.com/seller-forums/discussions/t/e2ac50323d96c0bb669b1aac3599fb7f -
Opting for Amazon-issued FNSKU labels keeps your stock segregated:
https://sellercentral.amazon.com/seller-forums/discussions/t/76575f622ff790e9648333f752a5a99c -
Counterfeit risk when inventory is commingled (no way to trace back):
https://sellercentral.amazon.com/seller-forums/discussions/t/76575f622ff790e9648333f752a5a99c -
How to change your default barcode preference (opt out of commingling):
https://m.media-amazon.com/images/G/01/fba-help/QRG/FBA_Label_Products_en-US.pdf -
Amazon Transparency (anti-counterfeit serialization) program:
https://sellercentral.amazon.com/help/hub/reference/external/202008510?locale=en-US -
Buying “Ships from and sold by Amazon.com” (Vendor Central) to avoid FBA pooling:
https://sellercentral.amazon.com/seller-forums/discussions/t/6621883a-1626-4ce4-8288-1b136cf15ffe
