Works well for a fair amt of time leaves no residue and easy on horses with sensitive skin
I love that it doesn't bother the horses that I use it on. It's a little pricier than most fly sprays, but totally worth it. Works great and for longer periods of time than other sprays.
Autoship is way to go. Always on time.
I've been using this fly spray for over 20 years. It's oil based and works like it's supposed to. I think it's the best one on the market. If I'm showing, I switch to a water based spray (they're not as effective) because sand arenas are dusty and the dust will cling to your horse with an oil based spray.