Which Fly Spray Works Best??!?

Natural Gaits 100% all natural horse spray is awsome!

A non-chemical spray that actually works! It is a wonderful synergy of food grade essential oils that work on 3 levels:

1. A repellant
2.As a coolant for the skin
3.As an adherent for lasting effect:)

Pyrahana. Without a doubt. I've tried soo many fly sprays and this one is the best.

Has anyone tried that Equisect natural fly spray? I think it is by farnam. It smells like it would work. I don't wanna waste my money if it doesn't work.