Not every allergy product works for every dog. I can say however that Four Leaf Rover's products have worked for lots of my pups, and those who have visited the store. Harmony is a mix of herbs that are commonly used to treat allergies that pop up in the Spring and Fall. This is enough to treat a Medium sized dog for a month.
As always, the FDA hasn't approved this, so note: this product does carry the NASC seal (The National Animal Supplemental Council) overseeing quality. As in all cases, if you don't see improvement, contact your veteranarian.
