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Why Thousands of Pet Owners (and Their Vets) Trust Plaque Guard™ Most dental products ask your pet to cooperate. Plaque Guard™ doesn't. It works quietly in the background — no wrestling, no stress, no skipped days.

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Shipping policy

Shipping & Returns

The Koa Happiness Guarantee
We want you and your pet to love our products. If you aren’t seeing the results you expected, we offer a 30-day satisfaction guarantee. This includes opened and used bottles—if it’s not for you, we will take it back.

How to Return
Please return any item within 30 days of receipt to our processing center:
Koa Healthcare
2312 Beechgrove Rd
Caledon, ON L7K 0M1
Canada

Refund & Exchange Details
  • Full Product Refund: We will refund the full purchase price of the item to your original payment method once the return is received.
  • Opened Items: Yes, we accept returns on opened bottles! We simply ask that you return the remaining portion in its original packaging.
  • Shipping: Original shipping fees are non-refundable, and customers are responsible for return shipping costs.
  • Damaged or Incorrect Items: If your order arrives damaged or you receive the wrong product, please Contact Us immediately. We will ship a free replacement at no additional cost to you.

Shipping to the United States

We're happy to offer free shipping on all Plaque Guard orders to the United States. As a Canadian product, Plaque Guard qualifies for duty-free entry under the Canada-United States-Mexico Agreement (CUSMA), and the vast majority of our U.S. customers receive their orders without any additional charges.

That said, we want to be fully transparent: U.S. trade and customs regulations are subject to change, and under the current administration, policies have been evolving rapidly. While we ship in full compliance with CUSMA, U.S. Customs and Border Protection (CBP) retains the authority to assess fees at their discretion.

Please be aware that you may be charged for any of the following at the time of import:

  • Customs brokerage fees
  • Import processing fees
  • Duties or tariffs

These charges, if applied, are determined solely by U.S. Customs and Border Protection and are outside of our control. Koa Healthcare is not responsible for any fees assessed by CBP upon entry of your shipment into the United States.

We recommend that U.S. customers stay informed about current import regulations. You can find up-to-date information directly from U.S. Customs and Border Protection here: U.S. Customs & Border Protection – USMCA

If you have questions before placing an order, we're always happy to help