“All I have is anecdotal evidence, but I can say that the number of flies in my house SUBSTANTIALLY decreased when using this product (my coop and run are close to my front door). My goal was to apply Healthy Pen every 2 weeks as the directions stated, but sometimes I missed a week. During the weeks that I missed treating the coop and run area, my wife and I noticed the number of flies in our house would go up. Moral of the story: Follow the directions and you'll likely see a noticeable reduction in the number of flies in your coop and run, and in your house, too, if your coop and run are close your house.”
“This stuff works, 4 stars because in my situation I have to spray every other day to control the ants. Smells really good. Does not bother my ducks at all.”
“Smells nice, makes things feel cleaner. Used regularly and MAYBE there were slightly fewer flies, but I can't be sure. There were definitely still a lot of flies.”
