Hi there,
Thanks for trying our icaridin insect repellent and for leaving a review.
Just wanted to clarify that the 150ml bottle and applicator is meant for human use and is not designed to cover a large area like a horse. In fact, at the anticipated application rate for horses, this size bottle will only contain 4 applications (two days if applied twice per day). It's possible that you may not have been applying enough for it to be effective.
We hope this helps and if you have any further questions about how to apply to achieve the best results, please don't hesitate to reach out to us.
Best,
Niamh
Customer Service Team
