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Your mouth is home to around 700 bacterial species — a stat that might sound alarming but is actually pretty normal. The challenge is that the oral microbiome is a mix of good-for-you bacteria and those that can contribute to issues like plaque buildup or gingivitis. Research suggests it's important to preserve the good bacteria while managing the potentially harmful types.
While mouthwashes can play a positive role in oral health, here's the catch: Traditional formulations that contain alcohol or chlorhexidine don't discriminate. They kill bacteria broadly, which may not effectively support a balanced oral microbiome.
So what ingredients can help curb bad bacteria, support the good and still leave your mouth feeling clean? The truth: Research in this area is still in its early days, and most studies are small and lab-based, making it hard to know how results apply in everyday mouths. But one thing is clear when you scan the oral-care product aisle: "Natural" mouthwashes are having a moment, so if you're looking to switch out that harsh, burning gargle your parents swore by for something gentler, finding the best natural mouthwash may be just what the dentist ordered.
But be cautious: Labels touting "herbal," "botanical" or "plant-based" don't always mean effective. Even "natural" isn't a regulated term (after all, alcohol itself should technically qualify). Some products may still contain iffy preservatives, while others use such tiny amounts of active ingredients that they couldn't fight bacteria if they tried. So what makes these rinses different — and potentially "better"? We spoke to dental experts to help explain.
"Natural mouthwashes generally don't contain synthetic chemicals and artificial flavors," says Dr. Jeremy Manuele, DMD, board-certified orthodontist and author of The MARPE Advantage. "Instead, they contain plant-based or mineral ingredients like aloe vera, essential oils (peppermint, clove, tea tree), xylitol or mineral salts." These gentler formulations may soothe gums, freshen breath, and — theoretically —support bacterial balance without the harsh burn of alcohol-based rinses (though research is still catching up in this area). But you need to look beyond simply avoiding synthetic ingredients. "'Natural' doesn't always mean effective or even safe, so it's worth digging into the details," says Manuele.
To cut through the noise, we interviewed three dental experts and researched dozens of products, prioritizing those with ingredients backed by evidence and positive user feedback. We then tested nine top-rated natural mouthwashes over two months, evaluating ingredient quality, taste, freshness and overall mouth feel. Our top picks deliver a clean mouth and fresh breath — without the sting.
Table of contents
Looking for other natural oral health solutions? Check out our top picks for best natural toothpastes.
Best natural mouthwash overall
Active ingredient: Sea salt | Flavor: Arctic Ocean Mint | Size: 16 oz. | Standout features: Patented sea salt rinse with no alcohol, artificial colors or preservatives
Why we love it: H2Ocean Healing Rinse Natural Sea Salt Oral Care takes the crown for combining effective results with a clean, minimal ingredient list. Its hero component is salt, one of nature's most time-tested antiseptics. Salt helps shift the pH in your mouth, making it harder for "bad" bacteria to thrive.
This rinse also contains xylitol — a non-sugar sweetener that research suggests may help reduce cavity risk — and lysozyme, an enzyme with antibacterial properties. One small study in adolescents found that a rinse with these ingredients lowered levels of certain bacterial strains, though another small study using a similar formula showed no effect on plaque or gingivitis scores after 30 days. In other words, the science is promising, but not conclusive.
Beyond the ingredients, it's also alcohol-free, which means no painful burning sensation and no post-rinse dryness — two of the biggest complaints about traditional mouthwashes."[Alcohol-free options] can freshen breath without stripping good bacteria," says Lauren Becker, DDS, a New York-based general dentist.
Safety check: The Environmental Working Group (EWG) rates this product a 1 out of 10 on their hazard scale, with 1 being the safest rating for products that don't qualify as EWG Verified. This score indicates that every ingredient has been independently screened and poses minimal risk for concerns like hormone disruption or reproductive toxicity. While the rinse doesn't carry the EWG Verified mark — no mouthwashes currently do — its low hazard score provides third-party reassurance that this pick isn't just clever "natural" marketing.
Tester notes: I'll be honest, I wasn't expecting to love this mouthwash, since saltwater rinses have never been my thing. But I was genuinely surprised by how clean and refreshed my mouth felt, with zero synthetic aftertaste. The Arctic Ocean Mint flavor is subtle, yet refreshing.
What shoppers say: I'm not alone. One enthusiastic Amazon reviewer calls it a total game-changer: "This is my fourth time buying H2Ocean Healing Rinse, and it's easily the best oral rinse I've ever used. I originally bought it for canker sore relief — and wow, it works fast. The natural sea salt formula calms irritation, reduces healing time and feels incredibly soothing."
Pros
- Rated a 1 on the EWG hazard scale
- Refreshing flavor that's not overwhelming
- Research-backed active ingredients including xylitol, sea salt and lysozyme
Cons
- Doesn't carry ADA Seal of Acceptance or EWG Verified mark
More natural mouthwashes we like for 2025
Active ingredient: Essential oils, baking soda, hydrogen peroxide, xylitol | Flavor: Wild Mint | Size: 20 oz. | Standout features: Two-chamber design
Why we love it: I never thought I'd describe a mouthwash as delicious, but here we are. GuruNanda Teeth Whitening Dual Barrel Oxyburst Mouthwash wins our "best flavor" award because instead of the usual harsh, medicinal taste, it blends crisp mint with bright citrus.
The rinse's dual-barrel design keeps two formulas separate until you dispense: One chamber contains hydrogen peroxide for gentle whitening, while the other holds a blend of seven essential oils, baking soda and xylitol. This separation supposedly keeps each ingredient at peak potency until the moment you use it. The essential oils work together to freshen breath and support gum health, while the baking soda balances the pH to help neutralize odors. GuruNanda also contains vitamins D3 and E, though research on oral benefits of these additions is limited.
Safety check: GuruNanda is alcohol-free, U.S.-made and claims to be ethically sourced. While it doesn't carry a third-party certification like EWG Verified, its formula avoids synthetic dyes and artificial flavors. The brand also backs the product with a 100% satisfaction guarantee.
Tester notes: When testing this mouthwash, I actually looked forward to using it and enjoying the tingling feel.
What shoppers say: One glowing Amazon reviewer summed it up: "Love this product, great taste, works wonderful." With nearly 7,500 reviews, most feedback is positive. A few users mentioned that the fresh feeling faded faster than they'd hoped, and some weren't sold on the flavor combination, but this criticism seems to be the exception rather than the rule.
Pros
- Uses research-supported active ingredients including xylitol
- 100% satisfaction guarantee
- Uses research-supported active ingredients including xylitol and baking soda
- Never tested on animals
Cons
- Doesn't carry official validation like the ADA Seal of Acceptance or EWG Verified mark
Active ingredient: Natural whitening enzymes, xylitol | Flavor: A blend of coconut, lemon and sage | Size: 16 oz. | Standout features: Free of alcohol, SLS and peroxide
Why we love it: Lumineux Teeth Whitening Mouthwash is our top pick for whitening as it uses gentle, peroxide-free ingredients that minimize the risk of enamel damage or tooth sensitivity. Becker specifically recommends this brand, noting: "Lumineux's mouthwashes whiten teeth without including alcohol or peroxide and include gentle agents instead like xylitol, sea salt and coconut oil and peppermint oil."
The formula combines whitening enzymes with coconut oil (which has some antimicrobial properties in lab studies) and sea salt for cleansing. Together, they can help remove surface stains while supporting overall freshness.
Safety check: Unlike many whitening rinses, Lumineaux is alcohol- and peroxide-free, making it a safer choice for those with sensitive teeth. Becker also points out that it may "also help balance the microbiome so it detoxifies bad bacteria without stripping the good."
Tester notes: I noticed that my teeth felt brighter with consistent use, but without any of the tooth sensitivity often associated with whitening products. The flavor is also delicious — minty and almost herby, but it might not be for you if you're not a fan of cloves. The 16-ounce bottle is also an excellent value at just under $8.
What shoppers say: I have to agree with a rave Amazon reviewer, who wrote: "I absolutely adore this product and not only because the ingredients are non-toxic and all natural, but my mouth actually FEELS so much fresher and cleaner after I use this mouthwash. I will say, though, that the taste may be quite overpowering or bitter if you prefer your mouthwash to have some sort of synthetic flavoring."
Pros
- Expert recommended
- Uses research-supported active ingredients including xylitol, salt and coconut oil
- Great flavor according to our tester, but may be too strong for some people
Cons
- Doesn't carry official validation like the ADA Seal of Acceptance or EWG Verified mark
Active ingredient: Mint, aloe vera, coconut oil | Flavor: Natural Mint | Size: 16 oz. | Standout features: Alcohol-free
Why we love it: As someone who downs a liter of coffee most mornings, I can confirm the Hello Peace Out Plaque Mouthwash works hard, cutting through every trace of coffee breath during testing. Its formula is carefully balanced to fight odor-causing bacteria without the harsh burn of alcohol.
Cosmetic dentist Jon Marashi, DDS specifically recommends this product, explaining that it features "natural ingredients like mint, aloe vera and coconut oil and is also alcohol free."
Safety check: Hello combines the mild antimicrobial properties of coconut oil and tea tree oil with aloe vera, known for its soothing properties. These ingredients may help address plaque-causing bacteria and freshen breath. Unlike alcohol-based rinses that can dry the mouth and simply mask odors, Hello's alcohol-free formula is designed to be gentler while still supporting gum health.
Marashi notes that "alcohol is drying and it also destroys harmful bacteria as well as good bacteria, which can lead to bad breath."
Tester notes: I loved the flavor and appreciated the fresh, clean feel that lasted through the morning. There's not much not to like about this mouthwash, and I'll be adding it to my cart again soon.
What shoppers say: One delighted Amazon reviewer says: "I've been using Hello Mouthwash for about a year now, and I’m genuinely impressed with the results. I had spent $1,000 on gingivitis treatments at my dentist and it kept coming back. I heard this could help so I bought it. After just a few days of use, I noticed a significant reduction in swelling and discomfort. Now, my gums feel healthier, less tender, and my whole mouth feels cleaner and fresher throughout the day." That said, even though I loved the flavor, the occasional reviewer was less than keen.
Pros
- Expert recommended
- Uses research-supported active ingredients for oral health including aloe vera and coconut oil
Cons
- Doesn't carry official validation like the ADA Seal of Acceptance or EWG Verified mark
- Some reviewers don't like the flavor
Active ingredient: Xylitol and essential oil and zinc blend | Flavor: Lemon Mint | Size: 16 oz | Standout features: Proprietary Oxygene formula
Why we love it: Oxyfresh Premium Lemon Mint Fresh Breath Mouthwash is our favorite essential oils pick because it blends citrus and mint oils with the brand's proprietary Oxygene technology, which claims to go beyond simply masking odors, targeting the compounds that cause bad breath at their source.
Manuele gives this his stamp of approval, saying, "Oxyfresh is my personal favorite. It's alcohol-free, tastes great and leaves your breath smelling fresh."
Safety check: Essential oils may provide mild antimicrobial benefits and fresh flavor, contributing to a cleaner mouthfeel. The Oxygene technology is a big part of what makes Oxyfresh different from most essential oil rinses, but just note that independent clinical research is limited, so long-term benefits are less clear.
Manuele also mentions that "Some of Oxyfresh's rinses contain fluoride, which can help if you're more prone to cavities" — good news if you're looking for a mouthwash combining plant-based ingredients with proven cavity fighters.
Tester notes: The oxygen-based formula breaks down volatile sulfur compounds that contribute to bad breath, a process that supposedly takes about 60 seconds, so you do need to commit to swishing the rinse for at least a full minute. I can attest that after using it, my mouth felt super clean, and the fresh feeling lasted much longer than I expected from a "natural" product.
What shoppers say: The reviews also confirm what I experienced. "Absolutely the BEST mouthwash I have ever used," says one Amazon reviewer. "It works so well. I totally look forward to using it after I brush my teeth. Tastes wonderful in my opinion. I don't know how something so soothing and non-abrasive could be so thoroughly effective. One little capful literally makes my mouth feel cleaner and just healthier in general the all day long 😋. Recommend FOR SURE!"
Pros
- Expert recommended
- Uses research-supported active ingredients including xylitol
- Some versions include fluoride for added cavity-protection
Cons
- Doesn't carry official validation like the ADA Seal of Acceptance or EWG Verified mark
Active ingredient: Nanosilver particles, xylitol | Flavor: Winter Mint | Size: 20 oz. | Standout features: Naturally antimicrobial, preservative-free
Why we love it: Elementa Nano Silver Mouth Rinse earns a spot on our list for its nanosilver formula, which the brand claims helps neutralize harmful bacteria linked to bad breath and plaque. Unlike alcohol-based rinses, this mouthwash is designed to be gentle on gums while still delivering freshness. The Wintermint flavor is crisp and cooling, making it a good everyday option for those who dislike overpowering or medicinal-tasting rinses.
Safety check: This dentist-developed rinse is alcohol-free and free from artificial dyes, which helps avoid dryness or irritation. (It only contains five ingredients: Water, xylitol, nanosilver, calcium acetate and natural wintergreen flavor.) While nanosilver is marketed for antibacterial properties, most studies have been conducted in lab settings — meaning more research is needed. The EWG rates this product a 1 on its 1-10 hazard scale.
Tester notes: Yes, $23 for 20 ounces is steep but this concentrated product is surprisingly economical. I found I only needed about half the amount of some other mouthwashes per rinse, which brings the cost per use down to a more reasonable level. The Winter Mint flavor completely erased my morning coffee breath and left my teeth feeling squeaky clean. Plus, it comes in a reusable steel container, which I liked — you can even subscribe for 40-ounce refills to be auto-shipped to your home at a discounted price.
What shoppers say: As one 5-star Amazon reviewer sums it up: "This mouthwash has the cleanest ingredients I've found without the unwanted chemicals… and it tastes great too. Every time I brush my teeth then rinse, I feel like I just had my teeth & mouth cleaned at my dentist's office."
Pros
- Rated a 1 on the EWG hazard scale
- Preservative-free and dentist-developed
- Refills can be auto-shipped at a discount
- Research-backed active ingredients include nanosilver and xylitol
Cons
- Doesn't carry official validation like the ADA Seal of Acceptance or EWG Verified mark
- Expensive
Factors to consider when purchasing natural mouthwashes
The word "natural" on a mouthwash bottle can mean anything from a formula with thoughtfully chosen, gentler ingredients to expensive marketing fluff wrapped in earth-toned packaging. Since the term isn't regulated, you need to look past all that. Here's what dental experts recommend focusing on to separate the winners from the wannabes.
Effective active ingredients
The best natural mouthwashes rely on ingredients with known antimicrobial properties rather than vague marketing terms. Look for products containing ingredients with research supporting antimicrobial activity, such as coconut oil, tea tree oil or sea salt, rather than mysterious "botanical extracts."
Becker points to xylitol as one of the "gentle agents" that can effectively fight bacteria without harsh side effects. Xylitol has been well-researched to reduce cavity-causing organisms, and one small study indicates it may help remineralize teeth, making it an ingredient worth seeking out.
That said, keep in mind that most of these alternative options haven't been thoroughly researched and studies are small and often limited. While it's best to seek out ingredients with this type of scientific support, do so with a grain of salt (so to speak). Most of these products haven't been tested or approved by the American Dental Association (ADA), which means they don't have the broader support and backing of the professional community or the organization's Seal of Acceptance.
Alcohol content
Marashi advises avoiding alcohol-based rinses, since alcohol can dry the mouth and disrupt the oral microbiome. Ironically, many people use mouthwash to combat bad breath, only to have alcohol-based formulas make the problem worse by fostering conditions that allow odor-causing bacteria to rebound.
Becker agrees, explaining that alcohol-free mouthwashes can still freshen breath but without indiscriminately wiping out helpful bacteria. Maintaining microbial balance is important for long-term oral health.
Alcohol concentrations in conventional mouthwashes can range from 5 to 27%, which is higher than most wines and beers! This explains the burning sensation that many people mistake for effectiveness.
Professional validation
Ideally, consumers would have more third-party certifications to rely on. For now, the ADA Seal of Acceptance is largely limited to traditional mouthwashes with ingredients that have extensive safety and efficacy data.
On the natural side, the EWG, which is often a helpful resource for identifying third-party validated non-toxic products, hasn't yet verified any mouthwashes. However, its EWG's Skin Deep database rates products on ingredient safety. A score of 1 or 2 (out of 10) indicates low hazard for issues like hormone disruption or toxicity. These ratings reflect safety only, not effectiveness.
Personal oral health needs
Your dental history should guide your mouthwash choice more than marketing claims. Ask your dentist for personalized recommendations — especially if you're managing cavities, gum inflammation or periodontal disease.
For example, if you're prone to cavities, they may suggest prioritizing remineralizing ingredients, such as xylitol or hydroxyapatite. If gum sensitivity or inflammation are issues, anti-inflammatory botanicals like aloe vera or chamomile may be suggested. Just keep in mind that if you have serious periodontal disease, your dentist may suggest skipping natural rinses altogether in favor of prescription options or formulas with stronger clinical evidence.
How we tested
To find the most effective natural mouthwashes, we built our process around expert guidance and hands-on testing. We consulted three dental professionals to better understand what makes a mouthwash natural and effective versus just offering clever marketing.
Armed with expert insights, we researched over 20 options, focusing on those with transparent ingredient lists, research-backed active compounds and consistently positive reviews. We then narrowed our list to nine top contenders for personal testing.
Each product underwent a one-week trial period with twice-daily use. Beyond flavor and texture, I assessed how well each one tackled post-coffee breath, whether the fresh feeling lasted between uses and how my mouth and gums felt after use. The winners earned their spots by consistently delivering on their promises and outperforming expectations.
Other products we tested
Desert Essence Tea Tree Oil Mouthwash: Contains antimicrobial tea tree oil, which left my mouth feeling clean. But I didn't enjoy the strong, medicinal taste that I couldn't shake post-use.
TheraBreath Fresh Breath Mouthwash: The only option on our list with the ADA Seal of Acceptance. While I felt it effectively got rid of bad breath, I didn't enjoy the medicinal, almost metallic flavor.
Essential Oxygen Certified BR Organic Brushing Rinse, All Natural Mouthwash: Features a blend of botanicals and essential oils with plaque-fighting properties. It's also organic, vegan and a woman-owned brand. Its only issue was the wintergreen flavor, which I didn't enjoy.
FAQs
What is a natural mouthwash?
"Natural mouthwashes opt for plant-based and mineral ingredients over synthetic chemicals and artificial additives. You'll find ingredients like sea salt, essential oils, xylitol and botanical extracts instead of artificial colors and preservatives or harsh detergents like sodium lauryl sulfate," says Marashi.
The philosophy behind natural products is different, too, as they attempt to work with your mouth's existing bacterial ecosystem rather than killing both harmful and beneficial bacteria with strong antimicrobials like alcohol or chlorhexidine. Natural mouthwashes are designed to be gentler and may help maintain microbial balance.
Becker adds that these mouthwashes "act as a great alternative without chemicals like alcohol, which can irritate the gums or burn during use." However, since the "natural" label isn't regulated, some products use it as marketing speak while still containing potentially iffy preservatives and additives. The key is finding products that use natural antimicrobials rather than just avoiding synthetic components.
Can I make my own natural mouthwash?
Approach DIY formulations carefully. Manuele says, "A basic DIY mix might include warm water, a bit of baking soda to neutralize acids and a few drops of antimicrobial essential oils like peppermint or tea tree." However, he warns to "avoid anything too acidic like vinegar or citrus juice as those can actually weaken enamel over time." (And never consume undiluted essential oils.)
Becker says that "you'll want to be mindful of how much of each ingredient is being used and note that the shelf life of DIY mouthwashes may not be as long as store-purchased products." For consistent results and safety, professional products are recommended.
Why are there alcohol-free mouthwashes on the market?
Think of alcohol-based mouthwashes as using a flamethrower to kill weeds in your garden. Yes, you'll eliminate the problem plants, but you'll also torch all the good stuff in the process. That's essentially what happens in your mouth when you use high-alcohol rinses. They wipe out everything, including the beneficial bacteria that help keep your breath fresh and your gums healthy.
For some people, alcohol-based rinses may worsen dryness or contribute to rebound bad breath. Alcohol also dries out your oral tissues and can irritate your gums, which isn't what you want from a product you use twice daily. That's why alcohol-free options have become so popular — they aim to freshen breath and support oral health without the drawbacks of alcohol.
What ingredients should I avoid in mouthwash?
The red flags include harsh irritants that can damage your mouth's delicate tissues. Becker recommends avoiding "SLS, or sodium lauryl sulfate, highly-concentrated alcohol, activated charcoal or anything that burns or could create inflammation." These ingredients can irritate sensitive tissues and disrupt beneficial bacteria.
Then you have the enamel destroyers. Manuele warns to "avoid anything too abrasive or acidic. Steer clear of mouthwashes that use hydrogen peroxide or acidic citrus oils in high concentrations. These can erode enamel with regular use." Your tooth enamel doesn't regenerate, so once it's gone, it's gone for good.
Finally, if you're committed to truly chemical-free oral care, Manuele advises being "careful with artificial dyes or preservatives if you're trying to stay in the natural category." These synthetic additives don't contribute to oral health and may cause sensitivities in some people.
Should I consult my dentist before switching to natural dental products?
Absolutely. "It's always good to consult with your dentist if you're switching up your routine, especially if you have specific concerns or ongoing dental issues," says Marashi.
Becker adds, "If you are prone to plaque build-up or gingivitis, your dental professional may recommend a specific mouthwash that is effective and provides what is best for your teeth and gums."
Meet our experts
Dr. Lauren Becker, DDS, general dentist and owner at Dr. Lauren Becker, New York, N.Y.
Dr. Jeremy Manuele, DMD, board-certified orthodontist and author of The MARPE Advantage, Las Vegas, Nev.
Dr. Jon Marashi, DDS, cosmetic dentist, Los Angeles, Calif.
Our health content is for informational purposes only and is not intended as professional medical advice. Consult a medical professional on questions about your health.
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