




Product description






Can this replace fly spray?
Many users report less need for sprays, though results can vary based on outdoor exposure and activity.
How long until it starts working?
The tag reaches full effect in 3–4 weeks. Wear it continuously for best results.
Will it bother my horse?
No. It’s lightweight and quiet—your horse won’t even notice it’s there.
Can I use it on horses without halters?
Yes. Braid it into the mane or attach it to a fly mask or sheet.
Item Weight : 0.8 ounces
Item model number : 850039618666
Date First Available : May 5, 2025
Manufacturer : EMFHarmony
ASIN : B0F76HZFR3
Best Sellers Rank: #215,220 in Pet Supplies (See Top 100 in Pet Supplies) #160 in Horse Fly Repellents
Customer Reviews: 2.5 2.5 out of 5 stars (8) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
FLY-FREE LOVE WITHOUT POISON – Protect your horse with the care they deserve. This toxin-free tag offers invisible, all-day support powered by nature—not poisons. It’s 24/7 natural defense without ever reaching for chemical sprays again.
CHEMICAL-FREE, STRESS-FREE PROTECTION – Our proprietary bioresonance technology uses subtle frequency science to support a balanced environment—no batteries, no harsh scents. Natural protection at its most advanced.
CLIP IT, FORGET IT, FEEL RELIEF – Attach it once to your horse’s halter, fly sheet, or braid into their mane. This wearable works continuously as long as it’s worn and is designed to disappear into their day—no batteries, charging, or intervention required.
ATTACH ONCE. PROTECT ALL YEAR. – Just one carbon tag that lasts 12 months—saving you time, stress, and money every season. It’s waterproof, durable, and made to last through rides, rain, mud, and muck. Just clip it once and enjoy year-long peace of mind.
MADE WITH PURPOSE IN THE ALPS – Hand-finished in Europe and built in the foothills of the Alps by animal care innovators, this natural tag carries a decade-long legacy from the makers of EMF Harmony.
7 reviews for BioPower Natural Fly & Tick Repellent for Horses – Horse Shield Tag with 1-Year Bioresonance Protection – Chemical-Free, Waterproof Carbon Tag That Clips to Halter – Non-Toxic Pest Defense
Add a review
$99.00

Heidi –
Terrible
So far…I think the tag is drawing the flies because I only bought one tag to try on my favorite mare and she is COVERED in flies more then any other horse at the stables! If it starts working…I’ll add or change my review. Right now..dissatisfied and disappointed!
Jacqueline Hudspeth –
It actually works!
It really works! I bought this for my daughter’s horse, who’d been struggling with flies. We braided it into her mane and have seen a big improvement. We’re very happy with this purchase.
Aleta Hall –
Fly tag
I can only say that my tag came on time and that it came with good instructions. I did braid it into my horse’s tail and I used a zip tie n wrapped that in duct tape but 2 days later he came in the barn without it! I didn’t have a chance t see how well it would work!
Terry –
Skeptical but now convinced
Flies bad this year. Tried this tag which seems to be working well. Watching my horse at turn out he appears less bothered. Tag easily applied to his halter. Has a year warranty. Cuts Dow on amount of fly spray needed. Would recommend.
FJS –
Sadly, it didn’t work for us.
Bought this for a mini mule and unfortunately it did not keep the flies off her, especially her legs. Truly wish it could have helped.
felia –
Zero difference in fly control
Does NOT work at all! Save your money.I bought this because of other reviews. But did absolutely nothing to help with flies or spiders.
Monika –
Noticeable diffrenec
I have the stall and halter set. And I can definitely see a difference that there are. Considerable less amount of flies by my horse