Honest answer: if this doesn't work for your dog, it's not worth anything. Which is why we offer 90 days to decide, with a full refund if you don't see a difference. No conditions, no return shipping.
But here's what we hear from customers who hesitated over the price: "I'd already spent three times this on dental sprays and Greenies and nothing lasted more than a day. This is the first thing that actually worked."
At $1.33 a day for a medium dog, that's less than a dental treat that doesn't work. The difference is this one does. And if it doesn't for your dog specifically, you pay nothing.
A professional cleaning costs $600 to $1,200, requires anesthesia, and often needs repeating within a year. Daily prevention costs less than your morning coffee. Your vet will notice the difference. Several of ours already have.