---
product_id: 17277929
title: "Ultra-Bitter Training Aid Spray – Chewing, Biting, Licking Deterrent for Dogs, Cats, Horses, Rabbits, Ferrets, Birds - Safe for Pet’s Skin – Can Also Protect Garden from Deer and Pests (4 fl oz.)"
brand: "fooey"
price: "€ 19.27"
currency: EUR
in_stock: true
reviews_count: 8
category: "Fooey"
url: https://www.desertcart.fi/products/17277929-ultra-bitter-training-aid-spray-chewing-biting-licking-deterrent-dogs
store_origin: FI
region: Finland
---

# All-natural, non-toxic formula Most bitter natural extract Safe on skin & surfaces Ultra-Bitter Training Aid Spray – Chewing, Biting, Licking Deterrent for Dogs, Cats, Horses, Rabbits, Ferrets, Birds - Safe for Pet’s Skin – Can Also Protect Garden from Deer and Pests (4 fl oz.)

**Brand:** fooey
**Price:** € 19.27
**Availability:** ✅ In Stock

## Summary

> 🍊 Bitter to the bite, gentle to your life — train smarter, not harder!

## Quick Answers

- **What is this?** Ultra-Bitter Training Aid Spray – Chewing, Biting, Licking Deterrent for Dogs, Cats, Horses, Rabbits, Ferrets, Birds - Safe for Pet’s Skin – Can Also Protect Garden from Deer and Pests (4 fl oz.) by fooey
- **How much does it cost?** € 19.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/17277929-ultra-bitter-training-aid-spray-chewing-biting-licking-deterrent-dogs)

## Best For

- fooey enthusiasts

## Why This Product

- Trusted fooey brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Skin & Surface Safe:** Alcohol-, fragrance-, dye-free with neutral pH—safe for your pet’s skin and all household surfaces.
- • **Unmatched Bitter Power:** Trademarked as the most bitter spray on earth, powered by grapefruit skin extract and 'The King of Bitters' herb for instant deterrence.
- • **Dual Indoor-Outdoor Use:** Protect furniture, shoes, and plants alike—turn any object into a no-go zone for destructive chewing and licking.
- • **Affordable Premium Quality:** Premium ingredients designed for pet parents who demand effective training aids without breaking the bank.
- • **Versatile Pet & Pest Defense:** Effective on dogs, cats, horses, rabbits, ferrets, birds, and even garden pests like deer and woodchucks.

## Overview

Fooey! Ultra-Bitter Training Aid Spray delivers a patented, all-natural bitter formula that safely deters chewing, biting, and licking across a wide range of pets and garden pests. Its neutral pH and non-toxic ingredients protect your home, furniture, and pet’s skin, making it a versatile, premium-quality solution for effective behavior training and garden protection.

## Description

Fooey! Spray is so disgustingly bitter, we actually have a registered trademark to say it's "the most bitter stuff on earth!" The extreme bitter taste comes from grapefruit skin extract and the herb known as "The King of Bitters." These all-natural active ingredients deliver a safe, effective and powerful deterrent to chewing, biting, licking and other destructive behaviors in dogs, cats, horses, rabbits, ferrets and birds. More affordable than replacing your belongings, use Fooey! in conjunction with training methods to keep pets from licking, biting, chewing and destroying anything they might like to go after in your home.Spray Fooey! on anything and you'll instantly transform it into an utterly distasteful object. Alcohol-, fragrance-, odor- and dye-free, the neutral pH spray is non-flammable, non-acidic and non-caustic. Available in 4, 8 or 16 oz. bottles, it is safe for furniture, walls, wires, shoes, clothing, fencing, stables, stalls and harmful plants. It's even safe to use directly on your pet's skin to discourage gnawing and licking of sutures, hot spots and inflamed areas. Trust us, your dog will hate it less than the traditional head cone. You can even use Fooey! outdoors to shut down the 24-hour garden buffet and prevent deer, rabbits, woodchucks and other vermin from eating your plants and flowers. Save time, money and frustration in and out of your home!We know that your animals are more than just pets - they are part of the family - so Fooey! designs training products that work and pet parents can actually afford. Your pets will stop biting, licking and chewing everything they shouldn't, and you will have a safe and effective training aid in your arsenal - making you both happy and able to focus on more important things like walks, fetch and snuggles.

Review: Lo recomiendo. - I love it ... thanks
Review: Only works on humans… for WEEKS! - I got this for my rabbits, because they chew baseboards. I sprayed it and they looked at me, looked at the wood and chewed alllllll night long! Now, every time I go into my rabbits pen and I do ANYTHING in there, it’s bitter and disgusting! I’m going to have to wipe the WHOLE thing down so that I can be free of this bitter taste every time I touch anything, INCLUDING MY RABBITS, in their pen!!! They are laughing at how horribly this product backfired at me. Thanks for nothing buy MY misery.

## Features

- SO DISGUSTINGLY BITTER – Fooey Spray is so disgustingly bitter, we actually have a registered trademark to say it’s “the most bitter stuff on earth” The taste comes from grapefruit skin extract and the herb known as “The King of Bitters.” These all-natural active ingredients deliver a safe, effective and powerful deterrent to destructive chewing, biting and licking behaviors.
- TRAINING AID – Use Fooey in conjunction with training methods to keep pets from licking, biting, chewing and destroying anything they might like to go after in your home. Remember to reward your pet for good behavior and they will continue to practice their good behavior.
- SAFE FOR YOUR PET AND HOME – Alcohol-, fragrance-, odor- and dye-free, the neutral pH spray is non-flammable, non-acidic and non-caustic. It is safe for furniture, walls, shoes, clothing and harmful plants, and even safe to use directly on your pet’s skin to discourage gnawing and licking.
- PROTECT YOUR GARDEN – Use Fooey outdoors to shut down the 24-hour garden buffet and prevent deer, rabbits, woodchucks and other vermin from eating your plants and flowers. Save time, money and frustration
- PREMIUM PRODUCTS FOR PREMIUM PETS – SynergyLab’s Fooey training products are created with premium ingredients but available at a price that pet parents can afford. We know your dogs are more than just pets, because we are pet parents too.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 3.2 out of 5 stars 1,804 Reviews |

## Images

![Ultra-Bitter Training Aid Spray – Chewing, Biting, Licking Deterrent for Dogs, Cats, Horses, Rabbits, Ferrets, Birds - Safe for Pet’s Skin – Can Also Protect Garden from Deer and Pests (4 fl oz.) - Image 1](https://m.media-amazon.com/images/I/61Gx-eotxJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lo recomiendo.
*by L***A on February 13, 2026*

I love it ... thanks

### ⭐ Only works on humans… for WEEKS!
*by T***E on August 8, 2025*

I got this for my rabbits, because they chew baseboards. I sprayed it and they looked at me, looked at the wood and chewed alllllll night long! Now, every time I go into my rabbits pen and I do ANYTHING in there, it’s bitter and disgusting! I’m going to have to wipe the WHOLE thing down so that I can be free of this bitter taste every time I touch anything, INCLUDING MY RABBITS, in their pen!!! They are laughing at how horribly this product backfired at me. Thanks for nothing buy MY misery.

### ⭐⭐⭐ worked for a while
*by L***N on February 27, 2025*

worked the first year, I guess they got used to it afer a while and no longer worked. or maybe the new batch wasn't good enough?

## Frequently Bought Together

- Ultra-Bitter Training Aid Spray – Chewing, Biting, Licking Deterrent for Dogs, Cats, Horses, Rabbits, Ferrets, Birds - Safe for Pet’s Skin – Can Also Protect Garden from Deer and Pests (4 fl oz.)
- Wags & Wiggles No Marking Deterrent Training Spray for Dogs - Indoor Dog Pee Repellent & Behavior Aid, Anti Pee & Urine Deterrent, No More Marking, Ideal for Potty Training

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-10*