We used this last year and it worked all season long. Our neighbor who owns a beauty shop saved the hair she swept up off the floor, and we stuffed a couple of handfuls into each of several knee-high hose. These were tied, then hung around the garden at deer-nose level. We stopped even seeing tracks anywhere around the garden! Evidently the deer do not like the human smell, which stays in the hair for a long time. We have a lot of deer and see tracks all over the property, but not near the garden as long as the hair-hose are up!