Is hypochlorous acid mouthwash safe for daily use?
Yes. When properly formulated for oral use and used as directed, hypochlorous acid (HOCl) mouthwash can be part of a daily oral-care routine.
Does Hypochlorous Acid Mouthwash Have Side Effects?
HOCl oral rinses have generally been well tolerated in available studies, but side effects can vary by formulation and concentration. Some studies using higher HOCl concentrations have reported temporary dryness or an unpleasant taste.[1]
River Refresh Oral Rinse is alcohol-free, avoiding the alcohol that can contribute to dryness and the strong burning sensation associated with some mouthwashes.[2]
What Matters When Choosing an HOCl Mouthwash?
Choose an HOCl product that is specifically formulated for oral use. Concentration (ppm), pH, ingredients, and directions all matter. A skincare, pet-care, or surface-cleaning product should not be used as mouthwash simply because it contains hypochlorous acid.
River Refresh Oral Rinse is formulated for everyday oral hygiene at 100 ppm HOCl and pH 6.5-7.0. Learn more about why ppm and pH matter in hypochlorous acid mouthwash.
How Often Can You Use Hypochlorous Acid Mouthwash?
River Refresh Oral Rinse is intended for use at least twice daily after brushing and flossing, plus throughout the day for on-the-go freshness.
Swish ½–1 oz (15–30 mL) for 30–60 seconds, gargling if desired, then spit out. Do not swallow.
For complete instructions, see How to Use Hypochlorous Acid Mouthwash & Oral Rinse.
River Refresh
Oral Rinse
Freshly activated 100 ppm HOCl oral rinse for fresh breath and everyday oral hygiene.
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Explore everyday uses, product guidance & FAQs on our Hypochlorous Acid Mouthwash page →
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- How Can Hypochlorous Acid Mouthwash Support Gum Health?
- What Does the Research Say About Hypochlorous Acid Mouthwash?
- Why Do ppm and pH Matter in Hypochlorous Acid Mouthwash?
- How to Use Hypochlorous Acid Oral Rinse
References
1. Evaluation of Substantivity of Hypochlorous Acid as an Antiplaque Agent: A Randomized Controlled Trial
Lafaurie GI, Zaror C, Díaz-Báez D, et al. International Journal of Dental Hygiene. 2018. View Study | PubMed
Evaluated HOCl mouthwashes at 0.025% and 0.05% concentrations, showing that human oral research has studied HOCl at concentrations higher than 100 ppm.
2. Mouthrinse (Mouthwash)
American Dental Association. ADA Oral Health Topics. Updated 2026.
View Source
Provides guidance on mouthrinse as an adjunct to brushing and flossing and discusses the role of antimicrobial mouthrinses in helping control plaque and gingivitis.
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