Pyranha Nulli-Fly Water-Based Spray for Sensitive Horses

Protect Sensitive Skin Without the Greasy Buildup

If your horse reacts to oil-based fly sprays, Pyranha Nulli-Fly offers a different approach. This water-based formula kills and repels flies, gnats, mosquitoes and ticks without the heavy oils and solvents found in many sprays. Because it's water-based, it dries clean — no oily residue to trap barn dust or dull your horse's coat before a show.

Nulli-Fly uses Pyranha's Suspension Technology to help keep the active ingredients evenly distributed in the bottle, and it goes on in a ready-to-use trigger bottle with a light citronella scent.

Why Riders Choose Nulli-Fly

• No greasy residue or dust magnet — the water-based formula dries clean and helps keep coats show-ready between baths.
• A water-based choice for thin-skinned horses — made without the heavy oil-based solvents that can cause scurf on sensitive horses.
• Suspension Technology — helps keep the active ingredients evenly distributed; give the bottle a quick shake if it has been sitting.
• Broad-spectrum protection — targets stable flies, horn flies, deer flies, gnats, mosquitoes, ticks and lice, per the label.
• Ready to use — 32oz trigger bottle with a light citronella scent.

Best For

Owners of sensitive or thin-skinned horses looking for a water-based fly spray that dries clean and skips the heavy oils.

Frequently Asked Questions

Q: Will this leave an oily film on my horse before a show?

No — because Nulli-Fly is water-based, it dries quickly and leaves a clean finish rather than an oily one, which is why many dressage and hunter competitors reach for it.

Q: My horse gets hives from most fly sprays — is this a good choice for reactive skin?

Nulli-Fly is a water-based formula made without the heavy oil-based solvents that can irritate thin-skinned horses, so many owners of sensitive horses prefer it. No fly spray can guarantee against a reaction, though — spot-test a small area first and stop use if any irritation appears. Always read and follow the product label.

Q: Do I have to shake the bottle before every use?

Pyranha's Suspension Technology helps keep the active ingredients evenly distributed, so heavy shaking isn't needed. If the bottle has been sitting a while, a quick shake never hurts.

Happy Tails, Happy Trails — HOOVES & PAWS