This product is NOT a fly spray. If you read the bottle, or even go to the company's web site. It's a great product, smells good and does it's job. It's job being:
Shines and moisturizes coat
Minimizes dry skin conditions
Repels dust and dirt
Detangles mane and tail
Non slip - can be used on saddle area
I'll give it a 5/5 as a great coat moisturizer but you will be very dissapointed if u try and use it as a fly spray.