











🐴 Stay fly-free, sweat-proof, and unstoppable—because your horse deserves the best!
Farnam Endure Sweat-Resistant Fly Spray offers up to 14 days of powerful protection against flies, ticks, mosquitoes, and more. Its innovative Repelock technology ensures the formula bonds to hair shafts, maintaining effectiveness through sweat, rain, and heat. This water-based, non-sticky spray conditions your horse’s coat while repelling pests, making it a top choice for equestrians seeking long-lasting, reliable insect defense.








| Active Ingredients | Permethrin |
| Brand | Farnam |
| Customer Reviews | 4.6 out of 5 stars 2,996 Reviews |
| Item Form | Liquid |
| Item Volume | 128 Fluid Ounces |
| Item Weight | 8.32 Pounds |
| Scent | Pleasant |
J**S
Flies die instantly!!
Living in Texas the flies can be terrible and while I do use a fly mask, it seemed other fly sprays would either only work for a bit or only deter some flies. I was almost going to go with a different spray because I thought this was a little pricey but then I decided to give it a go, and I’m so glad I did!! I got this spray the evening before my farrier was scheduled to come out. The next morning while waiting for the farrier I noticed how bad the flies were even that early, so after I groomed my horse, I started spraying him with this fly spray and let me tell you this stuff worked so good that some flies were literally dead on my horse!!!!! By the time I finished spraying there wasn’t a single fly that was alive on him!!! My farrier happened to be running late due to the client before me asking him to do 6 horses instead of 2 that were scheduled. When he finally arrived it was well past noon and I assumed that by that time the fly spray would have probably worn off as most do. NOPE!!! There still wasn’t a single fly on him. I literally couldn’t believe it!!! The listing says it lasts up to 14 days, now I can’t confirm or deny that statement as I generally reapply it atleast once or twice a week after a grooming session but I will say it does last for several days. The bottle itself doesn’t leak, however I’ve order this product multiple times from Amazon and there was one shipment that apparently busted during transport because I received a notification stating my product had been damaged and it would be delayed due to it be reordered. Obviously this isn’t due to the seller but something along transport. This product really works and although pricey, it is worthy every penny.
B**E
no toxic chemicals
works well but pricey
K**S
Good fly spray
Seems to work pretty good.The horses are happy
J**E
BEST. FLY SPRAY. PERIOD.
This is more expensive on the outset when compared to water based fly sprays, however, it is more economical in the long run because it is a superior fly spray that works with much less product being sprayed on my horse. It sticks and the flies avoid it completely. I’ve used 1/2 bottle of this spray as compared to 2 full bottles of water based sprays. Excellent fly spray and the only one I buy now. 5 stars.
C**P
Wish the bottle was a little bigger but works great.
This insect repellent product effectively prevents flies and ticks from approaching, providing reliable protection against these pesky insects. While the spray demonstrates excellent performance in keeping bugs at bay, the only drawback is its relatively high price point, which might make potential buyers hesitate before purchasing. Despite the cost, the product's efficacy in repelling insects makes it a valuable solution for outdoor activities and personal comfort.
C**Y
Works Great to Keep Flies Away!
Works so well! I don’t have hoses, but I used it to keep flies away from the food area for an outdoor wedding and it worked like a charm. I sprayed table cloths and ground ares and let it dry before bringing food out and it worked like a charm!
K**E
Does what it says
Best fly spray ever does last as well
L**T
Fly spray
Works amazingly and smells great!
Trustpilot
4 days ago
2 months ago