Farnam Equicare Flysect Horse Repellent Spray
The odor was so strong from the box I didn't even stray it. My husband said it, "smells like bad perfume".
Definitely works fast, kills flies almost instantly.
I've used this for years and years and years on my sensitive, thin-skinned grey throughbred who is a bug magnet and flinching, twitching, kicking bug phobe. This stuff works. I found the best price around here instead of on tack shop sites. Will be back. Switched over my cat food here too.
Last year I asked Chewy if they could carry this product and here it is! They are the BEST! And it came sealed so well, none was wasted. They taped the screw top and even being alcohol-based, I didn't lose any product. I love Chewy!!