Why Mare & Clare Exists
I built this because nothing else worked.
Not a product pitch — the whole story. The bottles that failed, the mechanism nobody explained, and why I finally built the one I actually needed.
The Problem Nobody's Explaining
Every Bottle Promises The Same Thing. None Of Them Say Why It Stops Working.
This isn't just what happened to Clare. It's happening on every shelf, in every tack room, right now. Fly sprays have relied on the same class of chemistry for decades — and biting insects have spent those same decades evolving resistance to it, the same way bacteria out-evolve antibiotics.
The label never caught up. It still says "up to 14 days." Nobody updated it to say what actually happens now.
3 Days
Pyrethroid spray, 1980s
2–3 Hrs
What it delivers today
If you've been blaming yourself for a problem the industry never told you about — you can stop.
See What We Do Differently
Introducing
Defense Spray
The bites stop. So does the guilt.
Plant-oil scent defense that stops insects before they bite — not another spray that waits until it's too late.
from $34.99
You're Not the Only One at the Gate
Real photos from real barns — horse owners who found the same thing you're looking for.
Try It Risk-Free for 60 Days
If it doesn't work for him, it doesn't work for us. Full refund, no questions asked.