Skip to product information

Shipping protection warranty

Shipping protection warranty

Repels insects all day long
Gentle on sensitive skin
Can be used year round
All natural ingredients
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
"

Four summers I watched my gelding rub himself bloody. Four summers I stood at the paddock fence apologizing to him. I tried every spray on the shelf, the $380 sweet itch rug, the Zyrtec from Costco — nothing held past noon. I started Renoura in May. By July his mane was growing back for the first time since he was five. I cried the first morning I saw it.

Denise R.
Denise R., 54 ★★★★★

Common Questions

Everything you need to know before your bottle ships.

📦 When will my order arrive?

Due to extremely high demand right now, our current shipping window is 8–15 business days within the continental United States. We also take 2-3 day to process orders as well.

To thank you for your patience while we work through the queue, we're offering free shipping on every order as our way of saying thank you for waiting. No minimums. No codes. Just included automatically at checkout.

Every order is hand-packed, tracked from the moment it leaves our facility, and you'll receive a tracking number by email the second your bottle ships out.

↩️ What if it doesn't work for my horse?

Every bottle is backed by our 60-day money-back guarantee. If your horse doesn't see noticeable improvement within sixty days of regular use, return the bottle — even if it's empty — and we'll refund you in full. No questions asked, no restocking fees, no return shipping required.

We can offer this guarantee because the four-plant formulation works on the underlying mechanism, not just the surface symptoms. Most owners see results within the first two weeks.

🌿 What's actually in the bottle?

Four plant-derived essential oils — citronella, peppermint, tea tree, and lavender — combined in a water-based carrier with a small amount of natural emulsifier so the formula sprays evenly and adheres to the coat.

No pyrethroids. No permethrin. No piperonyl butoxide. No DEET. No synthetic fragrances. No parabens. Safe for daily use on horses with sensitive skin.

🐴 Is it safe for pregnant mares, foals, and senior horses?

Yes. Because the formula is built on plant-derived oils rather than synthetic insecticides, it is safe for use on pregnant mares, foals over six weeks of age, and senior horses with compromised skin or chronic conditions.

If your horse has a known sensitivity to any of the four oils listed above, do a small patch test on the inside of the leg before applying to the whole body, as you would with any new product.

⏱️ How often do I need to apply it?

Most owners spray once daily, in the morning before turnout. The formula is designed to remain active throughout the day rather than wearing off in a few hours like synthetic pyrethroid sprays.

During peak fly season or high-humidity weather, a second application in the late afternoon may help. For best results, work the spray gently into the coat with a soft brush after application — this helps the oils settle into the hair shaft rather than evaporating off the surface.

💧 How long does one bottle last?

A single 200ml bottle covers roughly 30–45 days of daily application on one horse, depending on the size of the animal and the severity of insect pressure in your area. Owners with multiple horses or in high-mosquito regions like the Gulf Coast often choose the three-bottle bundle to ensure they don't run out mid-season.

🐎 Will it work on horseflies and deer flies, not just mosquitoes?

Yes. The four-plant formula is specifically designed to work across all major biting insects that affect horses — mosquitoes, midges, horseflies, deer flies, and stable flies.

Tea tree oil in particular targets the larger biting flies that most pyrethroid sprays struggle with, which is why so many of our customers report dramatic improvement in horses who never responded to conventional fly sprays.

🌍 Where do you ship?

We currently ship throughout the United States and Canada, with expansion to the United Kingdom and European Union planned for next season.

All orders include tracking. International shipping rates and delivery times are calculated at checkout based on your address.

Shipping protection warranty

Shipping protection warranty

Regular price $2.99
Regular price $2.99 Sale price
SAVE Sold out
View full details

Make Your Horse Invisible

Biting insects don't find your horse by chance.

They track her by smell — a scent plume she broadcasts through her skin from up to five miles away.

The four plant oils in Divolli bind to the receptors mosquitoes use to read that signal and shut them down. The plume keeps broadcasting.

The insects can't pick it up. Your horse becomes, in the most literal biological sense, invisible to them.

Renoura horse fly spray

Old Knowledge. New Bottle.

Before the major fly spray brands replaced the old methods with synthetic chemistry that no longer works, horsemen knew which four plants protected a horse from biting insects. We went back to that original formulation — citronella, peppermint, tea tree, and lavender — sourced from the regions that grow them best, and bottled it for the modern tack room.

No pyrethroids. No permethrin. No resistance. Just the quiet competence horse owners had a hundred years ago, brought back into your hands.

Buy Today

12,000+ Horse Owners Finally Got Their Summer Back

Real women. Real horses. Real relief from the bite cycle that never seemed to end.

4.9
★★★★★
Based on 1,847 verified reviews
✓ 100% Verified Purchases Only
12,000+
Horses Protected
94%
See Results in 2 Weeks
All Day
One Spray, Lasting Cover
96%
Would Recommend
Denise R., 54
Denise R., 54
3 days ago
✓ Verified Purchase
★★★★★
His mane is growing back for the first time in five years
Four summers I watched my gelding rub himself bloody. Four summers I stood at the paddock fence apologizing to him. I tried every spray on the shelf, the $380 sweet itch rug, the Zyrtec from Costco. Nothing held past noon. I started Divolli in May. By July his mane was growing back for the first time since he was five. I cried the first morning I saw it.
Sweet ItchMane RestoredLife Changing
Was this helpful? 1,487 people
Carol M., 51
Carol M., 51
1 week ago
✓ Verified Purchase
★★★★★
I'm hacking my mare out again for the first time in 3 years
I'd stopped riding her completely. She would bronc every time a horsefly came near us — bucking, bolting, totally unrideable from May to October. Last Saturday we went two hours on the back trail. I kept waiting for the other shoe to drop. It didn't. She walked through a swarm of deerflies and barely flicked her ears. I have my horse back.
Riding AgainTrail HackingCalm Horse
Was this helpful? 1,243 people
Sandra K., 58
Sandra K., 58
1 week ago
✓ Verified Purchase
★★★★★
My vet asked me what I had changed
He's been managing her insect bite hypersensitivity for six years. Last appointment he stopped mid-exam and said he couldn't believe it was the same pony. Coat clean, ears healed, no welts on her belly. I told him about the four-oil formula. He wrote it down. Honestly? Neither of us could believe it either.
Vet ApprovedCoat HealedIBH Relief
Was this helpful? 1,834 people
Patricia L., 49
Patricia L., 49
2 weeks ago
✓ Verified Purchase
★★★★★
Sleeping in until 6 AM for the first time in nine summers
My alarm was set for 4:35 every morning of fly season. I'd be out at the paddock with a headlamp before the midges started flying. After two weeks on Divolli I realized I hadn't been out before sunrise in nine days. He was standing calm at the gate at 7. No fresh welts. No stomping. I made coffee on the porch and watched the sun come up. I forgot what that felt like.
Routine FreeMornings BackLess Application
Was this helpful? 1,567 people
Margaret W., 56
Margaret W., 56
2 weeks ago
✓ Verified Purchase
★★★★★
Took my granddaughter on her first trail ride
She's been asking for two summers and I kept telling her grandma's horse couldn't handle the bugs. Last weekend I sprayed him down once before turnout, tacked him up at three, and we walked the back loop together. She rode in front of me on the saddle pad. He didn't flick a single fly. Not one. She told her mom 'Grandma's horse is calm now!' I'll never forget her face.
Granddaughter TimeFamily RidingCalm All Day
Was this helpful? 1,923 people
Jennifer T., 47
Jennifer T., 47
3 weeks ago
✓ Verified Purchase
★★★★★
I added up what I used to spend — over $2,300 a year
Pyranha. Endure. Tri-Tec. Ultrashield. The fancy Swiss spray. Zyrtec in bulk. A $380 Rambo I rubbed through by August. I tracked it last year. Twenty-three hundred dollars on one mare and she still got eaten alive. This year I'm at $341 total. Her belly is clean. I keep the old receipts in a drawer to remind myself what I almost kept paying.
Cost SaverOne BottleMath Doesn't Lie
Was this helpful? 2,103 people
Linda M., 62
Linda M., 62
3 weeks ago
✓ Verified Purchase
★★★★★
Safe enough for my pregnant mare
She had a bad reaction to a pyrethroid spray three years ago and I've been terrified to use anything on her since. Especially with her in foal. My vet said the four oils were safe, and I did a patch test on the inside of her leg before going further. No reaction. Two weeks in and she's bug-free for the first time in years. I finally exhaled.
Pregnant MareSensitive SkinSafe Formula
Was this helpful? 1,456 people
Rebecca H., 53
Rebecca H., 53
1 month ago
✓ Verified Purchase
★★★★★
Took my first summer vacation in seven years
Last October I came home from a five-day trip and found my gelding had rubbed half his mane off because the rug slipped. I hadn't traveled since. This August my husband and I drove to a B&B in the mountains for a long weekend. My niece checked on him once a day. I came home Sunday night and he was perfect. First real summer trip since 2018.
Travel AgainHusband TimeConfidence Restored
Was this helpful? 1,834 people
Karen J., 50
Karen J., 50
1 month ago
✓ Verified Purchase
★★★★★
It actually smells good — my tack room doesn't reek anymore
Power Phaser used to give me wheezing fits. The chemical smell would hit me the second I opened the tack room door. This stuff smells like lavender and peppermint. Genuinely pleasant. My husband stopped complaining about my barn clothes coming home smelling like a chemical plant. Small thing but it matters when you're applying it daily.
Smells GreatNo ChemicalsEasy Daily Use
Was this helpful? 1,245 people
Helen R., 60
Helen R., 60
1 month ago
✓ Verified Purchase
★★★★★
Gulf Coast EEE country — I needed something more than vaccines
I live in coastal Louisiana. EEE bulletins come in monthly during summer. My neighbor lost a horse to it three years ago. The vaccines aren't 100% and the synthetic sprays wore off in two hours flat. Divolli sits on her every day, all day. I sleep better at night knowing the mosquitoes can't even find her. Vaccinated AND covered now.
Disease PreventionGulf CoastPeace of Mind
Was this helpful? 1,923 people
Susan A., 45
Susan A., 45
5 weeks ago
✓ Verified Purchase
★★★★★
Works on horseflies and deer flies — finally
Every other spray I've tried did nothing on the big biters. Horseflies the size of my thumb leaving silver-dollar welts on my mare's neck. The tea tree in this formula seems to actually deter them. I watched a deerfly land on her shoulder last Tuesday and fly off without biting. I sat on the fence and watched it happen like a magic trick.
HorsefliesDeerfly ReliefBig Biter Cover
Was this helpful? 1,567 people
Elizabeth M., 57
Elizabeth M., 57
5 weeks ago
✓ Verified Purchase
★★★★★
My old gelding has his quality of life back
He's 22 and his sweet itch had gotten so bad my vet and I were having quiet conversations about whether it was time to talk about quality of life. I tried Divolli almost as a last resort. Six weeks later he's standing in the paddock calm, his crest is healing over, and his eye is bright. I don't know if anyone outside this world understands what it's like to give a horse like him another good summer. Thank you.
Senior HorseQuality of LifeLast Resort Worked
Was this helpful? 2,234 people