[jcoffland]

Customers saying "this has changed recently" means little. For example, I found such reviews for a pet flea product. When I investigated further I found similar reviews both very recent and going back 4, 6 and up to 8 years. Perhaps there are random bad batches but I suspect that part of the problem is the perception that a product is different. People often fail to recognize other factors such as changes in their own usage patterns, or in this case, changes in their local flea population.

[LegitShady]

the flipside is also true - sometimes the product changes but the listing stays similar with the same URL. I buy why protein isolate and the listing on amazon changed to a blend of isolate and hydrolysate without any change in brand or product name - just a slight change in the packaging.

It's possible the product did change every 2 years or so.

[joegahona]

It might mean little for a flea circus or bags to pick up my dog's poop, but for something I'm using on or in my body, it gives me pause.