We read the price history of 42 bestselling products in pet supplies on September 28, 2026. 20 of them are at a genuine low. 13 are advertised at a discount measured against a price the product does not actually sell at.
Sinclair, your free AI shopping companion, reads the price history behind every product on this page before it is listed here.
31%
31 percent of the 42 bestselling products we checked on September 28, 2026 carried an advertised discount measured against a price the product does not sell at: 13 of 42.
Every verdict is measured against that product's own price history over the last 12 months, never against what other sellers charge. The two comparisons on each row are its own 90 day average and its own 12 month low. Nothing on this page is sponsored, and no brand can buy a verdict.
Each row shows how today compares with that product's own history rather than the price itself. The live price is on Amazon, one click through, and that is the price that applies when you buy.
Measured September 28, 2026
Price shape, last 90 days. The line is the price record, not a picture of the box.
Amazon · Checked September 28, 2026
Fresh Step · Pet Supplies
Near its lowest in 3 months
10% below its 90 day average
The lowest price in three months. It has been 3 percent cheaper in the past year.
Amazon · Checked September 28, 2026
INABA · Pet Supplies
Near its lowest in 3 months
7% below its 90 day average
The lowest price in three months. It has been 52 percent cheaper in the past year.
Amazon · Checked September 28, 2026
Dr. Elsey's · Pet Supplies
Lowest in 12 months
5% below its 90 day average
The lowest price we have ever recorded.
Every category is checked on the same schedule, with the same rules.
We show how today's price compares with this product's own history rather than the price itself. Amazon's live price is on the product page, one click away, and that is the price that applies when you buy. A number copied onto this page could be out of date by the time you read it, and a page about price truth should not carry one.
Every product here is re-checked on the same weekly run, not only the new ones. A verdict that changed is updated or the product is removed. The date on each row is the day its price record was last read.
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