---
product_id: 254534417
title: "Synergy Labs Fooey Ultra Bitter Spray (8fl. oz)"
brand: "fooey"
price: "HK$257"
currency: HKD
in_stock: true
reviews_count: 1
url: https://www.desertcart.hk/products/254534417-synergy-labs-fooey-ultra-bitter-spray-8fl-oz
store_origin: HK
region: Hong Kong
---

# All-natural bitter extracts 10x stronger than competitors Safe on pets & surfaces Synergy Labs Fooey Ultra Bitter Spray (8fl. oz)

**Brand:** fooey
**Price:** HK$257
**Availability:** ✅ In Stock

## Summary

> 🚫 Say goodbye to gnawing chaos with the ultimate bitter defense!

## Quick Answers

- **What is this?** Synergy Labs Fooey Ultra Bitter Spray (8fl. oz) by fooey
- **How much does it cost?** HK$257 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/254534417-synergy-labs-fooey-ultra-bitter-spray-8fl-oz)

## 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

- • **All-Natural & Pet-Safe:** Formulated with grapefruit skin extract and 'The King of Bitters' herb, free from alcohol, fragrance, dyes, and harsh chemicals—safe for pets and your home.
- • **Versatile Multi-Pet Use:** Effective on dogs, cats, horses, ferrets, rabbits, and birds—one spray to protect all your furry (and feathered) family members.
- • **Affordable Premium Quality:** Premium ingredients and proven results at a price that fits your budget—because your pets deserve the best without compromise.
- • **Unmatched Bitterness Power:** Trademarked as the most bitter spray on earth—10x stronger than other training aids to instantly deter unwanted chewing and licking.
- • **Indoor & Outdoor Protection:** Use it on furniture, shoes, plants, and garden areas to prevent destructive behavior and protect your prized possessions and greenery.

## Overview

Synergy Labs Fooey Ultra Bitter Spray is a powerful, all-natural training aid designed to deter pets and wildlife from chewing, licking, and damaging your belongings. Featuring a patented formula 10 times stronger than competitors, it’s safe for use on pets, furniture, plants, and more—making it the go-to solution for pet parents seeking effective, affordable, and versatile behavior control.

## Description

SynergyLabs Fooey! Ultra Bitter Spray; 8 fl. oz.

## 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.
- Fragrance-Free.
- Color & Dye Free. Won’t Stain.
- 10 x’s More Powerful Formula than Competitive Training Aids.
- Affordable.
- Guaranteed to work on most dogs, cats, horses, ferrets, rabbits and birds.
- Spray Fooey! on anything – and you’ll instantly transform it into an utterly distasteful object. Works on most dogs, cats, horses, ferrets, rabbits and birds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Name | Ultra Bitter Training Spray |
| Allergen Information | Celery |
| Weight | 1 Pounds |
| Units | 236 Milliliters |
| Brand | Fooey |
| Format | Spray |
| Age Range Description | All Stages |

## Images

![Synergy Labs Fooey Ultra Bitter Spray (8fl. oz) - Image 1](https://m.media-amazon.com/images/I/61sUkYqyJGL.jpg)
![Synergy Labs Fooey Ultra Bitter Spray (8fl. oz) - Image 2](https://m.media-amazon.com/images/I/51x7EhV3nkL.jpg)
![Synergy Labs Fooey Ultra Bitter Spray (8fl. oz) - Image 3](https://m.media-amazon.com/images/I/51yQETBzFuL.jpg)
![Synergy Labs Fooey Ultra Bitter Spray (8fl. oz) - Image 4](https://m.media-amazon.com/images/I/51XwQ1TIWqL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐ Need it to be replaced!
*by J***G on 26 September 2021*

This is the third time I have ordered. Very disappointed this time, the package leaked! I will bot be able to use it at all… Spilled all over the plastic package!However, the overall product is great! Just needs improvement on how the product delivery was handled!

## Frequently Bought Together

- Fooey! Ultra Bitter No Chew Spray for Dogs, Cats, Horses, Rabbits, Ferrets, Birds - Anti-Chew Bitter Spray for Dogs Stop Chewing Furniture - Dog Deterrent Spray Training Aid Safe for Pets - 8 fl oz
- Grannick's Care Dogs Bitter Apple No Chew Spray 8oz

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**Shop now:** [https://www.desertcart.hk/products/254534417-synergy-labs-fooey-ultra-bitter-spray-8fl-oz](https://www.desertcart.hk/products/254534417-synergy-labs-fooey-ultra-bitter-spray-8fl-oz)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-22*