Adding mouthwash or other additives to your water flosser can be a refreshing experience. Solutions such as mouthwash, antibacterial mouth rinses, therapeutic rinses, etc. when added to warm water in the reservoir help fight germs and protect against periodontal disease. It's important to know what you can or cannot add to your water flosser to ensure it continues working properly and no damage is done. Continue reading to find out more about adding solutions to your oral irrigator.

Is it Safe to use Additives in Your Water Flosser?

Yes. There are safe solutions to add to the reservoir of a water flosser that can be beneficial to your oral health. As mentioned there are also additives that are unsafe to add. ALWAYS be sure to read the product manual to know for certain if additives are safe for your particular water flosser model.

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Benefits of Water Flosser Additives

The benefits of water flosser additives are not clinically evaluated, but here is some more information on what mouthwash and rinses can do for you:


Standard mouthwash and antiseptic mouthwash are both safe to add to Waterpik water flossers, such as the Waterpik Classic WP72. These mouthwashes can do 1 or more of the following:

  • Freshen your breath
  • Prevent plaque build-up
  • Remove particles
  • Prevent cavities

With all of these added benefits, why not rinse and floss together to save time by using up to a 1:1 ratio solution of mouthwash and water in your Waterpik? A 1:1 ratio is the maximum recommended solution as an oral irrigator additive.

Therapeutic Mouth Rinse:

If you have been prescribed a therapeutic rinse by your dentist, this is also safe to add to your Waterpik. Consult your dental professional for information on the proper water to rinse solution ratio for you.

TIP: Use the Pik Pocket tip combined with this solution to clean periodontal pockets.

How do you Put Additives in a Water Flosser?

What is not Safe to Put in an Oral Irrigator?

Certain solutions that can reduce the performance of your Waterpik water flosser include:

  • Bleach
  • Pure essential oils
  • Baking soda
  • Iodine
  • Salt

Bleach in Waterpik water is a no-no, along with the others listed above. In short, if you do not want to lessen the life of your water flosser do not add these solutions to it. As tempting as it may be...


If you already use a water flosser and mouthwash separately, it would make sense to combine the two to save time and achieve the benefits of both. While it is not necessary to do so, it makes for a fresher water flossing experience. I personally love the clean, fresh feel I get from adding a natural mouthwash to my water flosser. Remember that it is not safe to put all additives into the reservoir of your water flosser and it depends on the model, so read the manual.




Aurora is the lead editor here at pearlywhytes.com. She is one of those people who actually likes going to the dentist. She loves to write about anything health related, but oral health is her most passionate topic. Her free time is spent partaking in family activities and experimenting in the kitchen.

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