Not every probiotic doses the same way regardless of size -- some labels print a specific low-end tier for small dogs instead of one flat dose for every weight. We're listing the products whose own dosing table includes a defined tier capped around 10 to 25 lb, rather than a single "any weight" dose. A dedicated small-dog tier doesn't mean a higher per-pound dose or better evidence -- it just means the label itself scales down rather than leaving you to guess.
The product's own dosing table includes a tier specifically capped between roughly 10 and 25 lb, rather than one dose for all weights.