SynergyLabs® Fooey®! Ultra Bitter Spray


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Fooey®! Ultra Bitter Spray is so disgustingly bitter, it actually have a registered trademark to say it’s “the most bitter stuff on earth! ™” When used in conjunction with recommended training methods, Fooey®! stops dangerous and destructive behaviors such as: unwanted chewing, licking, biting, ingesting and more.


  • Alcohol-free
  • Safe to use on pets.
  • Neutral pH
  • Non-Flammable
  • Non-Acidic
  • Non-Caustic
  • Fragrance-free
  • Color & dye free
  • Won’t stain

4 oz.

Purified Water, All Natural Bitter Principles & Extracts, Preservatives

Synergy Labs Tips for Training Your Pet
Training your pet can be a difficult process, but if you get everyone in your family on-board, and stay consistent in your methods, the rewards do come. Dogs want your approval and love, naturally, so you must teach them what behaviors are expected – and they will follow. Pet parents should set realistic expectations for training; your dog is not going to be trained over-night. It takes time to change behaviors you don’t like – such as barking, digging, jumping, chasing, and going potty in the home. It is never too late to change a behavior you don’t like, however, the earlier you get started, the quicker it is to fix the problem. We also know dogs respond well to treats. Sure, this could be considered bribery…but it works. So, do what works! Reward your pet for good behavior and they will continue to practice their good behavior. Here are some top tips for training your pet:

  • Have realistic expectations. Training takes time. So be patient.
  • Have fun! Make training an engaging & rewarding experience for you and your pet.
  • Tell your puppy what you want him/her to do.
  • Be consistent in telling your puppy what to do. Make sure everyone in your family uses the same training methods, commands, and rewards system.
  • Keep regular mealtimes & give your puppy lots of potty opportunities.
  • 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.
  • Praise and give affection when your puppy responds to your commands.
  • Give treats and rewards when your puppy listens to you.
  • Exercise your pet. Take lots of walks. Let them run and play.
  • Don’t give too much freedom too soon. Actively supervise your pet during their training stages.
  • Love your animal always! Because, that’s how they feel about you.

Synergy Labs Gardening Tip
Gardeners love using Fooey®! to prevent deer, rabbits, woodchucks, and other vermin from eating their non-edible plants, and beautifully appointed gardens. Save money, time and headaches not having to re-plant every time a wandering critter strolls through your yard looking for lunch! Fooey®! is great for protecting your pet from potentially dangerous indoor plants, too.



We we gladly accept returns for reimbursement or exchange within 30 days of receiving your order as long as the item is in brand new, resalable condition. A return shipping label will be provided for a $5 fee that is deducted from your final refund amount.

**Bowsers Pet Products Moderno Dog Crate, Diggs® Revol Dog Crate, KindTail PAWD® Pet Crate, Mystery Boxes, personalized items and clearance items are final sale and not eligible for refund or exchange.


Most orders ship within 1 business day and are typically delivered within 2 to 7 business days via USPS Priority or UPS Ground. Some items may ship directly from the designer and take slightly longer to arrive. This will be noted in your cart at checkout. Moderno Crates are subject to additional shipping charges.

SynergyLabs® Fooey®! Ultra Bitter Spray
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