Halitosis is a condition where the main symptom is bad breath. One of the factors behind halitosis is the imbalance of certain oral bacteria present on the teeth and on the tongue.
These bacteria proliferate in the tiny grooves and other small areas around the mouth and produce volatile sulfur compounds (VSCs) as a result of breaking down organic particles. This process may generate bad breath and endanger oral health.
Oral probiotics are living microorganisms that may have an important role in restoring the natural flora of the mouth. They have unique properties that can help to reduce tooth decay, gum disease, and foul breath.
However, there are plenty of brands and probiotic strains on the market. To help you select the right product for you, we have compiled a list of the best probiotics for bad breath, so you can make an informed decision and pick the one that suits your needs.
Best probiotics for bad breath: a shortlist
- Everidis Health Sciences — best probiotic to use in daily oral hygiene
- luvbiotics — overall most palatable flavor in a probiotic
- Life Extension — most affordable probiotic for bad breath
- hyperbiotics — best cruelty-free oral probiotic
- Now Foods — most certified probiotic for bad breath
How have we compiled the best probiotics for bad breath?
We have compiled our top picks following key criteria that ensure the quality and safety of different probiotic products.
| Ingredients | Science-backed formula and high-quality ingredients |
| Strain of probiotic | Strains with certain properties to aid tooth decay, gum disease and improve oral health |
| CFU | From 100 million |
| Price | $16.50–$28.99 |
| Safety | Tested formula, GMP, and other certification |
| Flavor | Unflavored or flavored |
- Ingredients. We have evaluated the formula of each product and the quality of their ingredients.
- Strain of probiotics. Different types of strains have different results in the mouth. We evaluated the most suitable ones to balance oral bacteria and prevent conditions like tooth decay or cavities.
- Colony Forming Units (CFU). Probiotics are measured in colony-forming units (CFU), which indicate the number of viable bacteria in each probiotic dose. It is always advisable to check the CFU count of a probiotic in the supplement to choose the most adequate one based on your oral health needs.
- Safety. We evaluated the safety standards of each product, including lab tests, adherence to GMP, and other information. Additionally, we reviewed the ingredients for possible adverse reactions or allergies.
- Flavor. Oral probiotics melt in the mouth and might leave an after-taste. We evaluated the flavors of each product and compared their palatability for different individuals.
5 best probiotics for bad breath in 2023: an overview
We have reviewed and compiled our top picks for best probiotic to help you make an informed decision about your oral health.
1. Everedis BioGaia Prodentis — best probiotic for daily oral hygiene
Everedis BioGaia Prodentis, manufactured by Vita Springs, is an innovative probiotic is the perfect match for those looking for a product to use between dental visits or to incorporate into daily oral hygiene.
Additionally, the brand recommends its use for kids or those with orthodontic appliances to protect against tooth decay and bad breath.
The probiotic contains a dual L. reuteri bacterial strain in its formula. This strain may combat bad breath due to its properties to inhibit pathogenic microbes and balance the mouth's microbiota. Additionally, it may have anti-inflammatory properties and help to support the immune system.
Other ingredients in BioGaia include palm oil, peppermint flavor, menthol flavor, peppermint oil, and sucralose. Furthermore, the brand does not add soy, preservatives, or sugar to their product.
The probiotic comes in 30 servings. Its recommended dosage is 1 lozenge per day. Individuals can take the product after brushing their teeth and letting it melt in the mouth. The brand advises regular consumption to support healthy teeth, gums, and fresh breath.
It is available for $26.25, and the strain is present in 100 million CFU per serving.
2. Luvbiotics — best flavored probiotic for bad breath
Luvbiotics' dental lozenge can become a great companion for those who enjoy the feeling of a fresh mouth but do not have the time or availability to brush their teeth.
This probiotic contains Lactobacillus reuteri strain and other ingredients that include xylitol, natural mint aroma, magnesium stearate, menthol, and aloe vera gel.
In the luvbiotics formula, xylitol takes the spotlight due to its potential property to reduce plaque build-up and tooth decay. Also, it may help to prevent cavities and gum diseases.
Furthermore, the presence of aloe vera gel in the probiotic may make a difference due to its antibacterial properties and its potential ability to soothe the gumline.
The brand recommends dissolving 1 lozenge in the mouth after brushing your teeth or after meals.
It is available for $34.49 and contains 3 packs with 30 lozenges.
3. Life Extension FLORASSIST — most budget-friendly probiotic for bad breath
Life Extension FLORASSIST, manufactured by Vita Springs is a powerful blend that combines two strains of probiotics, BLIS M18 and Immuno-LP20, to promote oral hygiene.
The combination of these strains may promote healthy microbial balance, immune function, and support optimal oral health.
The probiotic product is vegetarian and gluten-free. It also includes ingredients like xylitol, mannitol, dextrin, microcrystalline cellulose, and ostearic acid.
The brand recommends dissolving 1 lozenge in the mouth daily, preferably after brushing teeth or per doctor's recommendation.
The brand discourages pregnant or nursing women from using FLORASSIST due to the possible side effects of some ingredients.
It is available for $16.50 and contains 30 lozenges with a 1 billion CFU per 10 mg.
4. Hyperbiotics PRO-dental — best vegan probiotic for bad breath
Hyperbiotics PRO-dental is formulated with four oral hygiene targeting probiotic strains to support oral, dental, and upper respiratory health.
The formula contains two different strains of Lactobacillus and Streptococcus that may improve the health of the oral cavity. Their mixture might also reduce the build-up of plaque and balance the bacteria in the mouth.
Additionally, hyperbiotics includes chelated zinc, an ingredient that contributes to healthy teeth formation, might prevent plaque, and may contribute to the reduction of halitosis.
The brand recommends chewing or dissolving 1 tablet once or twice per day, after brushing teeth or using mouthwash. However, the dosage can be increased to 2–3 tablets if needed.
It is available for $28.99 and has a CFU of 3 billion in 170 mg. Their bigger product includes free shipping.
5. Now Foods — best brand transparency in a probiotic
Now Foods takes the spotlight on brand transparency. It is USDA-certified and discloses how their products are manufactured and produced.
Their probiotic is made with Streptococcus salivarius. A strain that may support mouth, and throat health.
Additionally, it includes ingredients like FOS (fructooligosaccharides), xylitol, sorbitol, microcrystalline cellulose, silicon dioxide, stearic acid (vegetable source), natural strawberry flavor, and beet powder.
Among their formula, FOS takes the spotlight for its potential properties to increase the growth of lactic acid bacteria and promote butyrate and lactate production.
The probiotic has been identity-verified using DNA fingerprinting technology. Furthermore, it is made and quality-tested with globally sourced ingredients.
The brand recommends taking two lozenges 1–4 times per day for adults and two lozenges 1–5 times for children older than 2 years old.
It is available for $19.19 and contains 1 Billion CFU per 42 mg.
Comparison of the best probiotics for bad breath
Finding the right product to aid with bad breath can be very challenging. Therefore, we have analyzed and compared various products that may be helpful with the condition.
| Product | Price | Type of Strain | CFU | Daily amount | Serving size | Flavor | Vegetarian |
| Everedis BioGaia Prodentis | $26.25 | Lactobacillus reuteri ATCC PTA 5289, Lactobacillus reuteri DSM 17938 | 100 million | 1 lozenge | N/A | Mint | Yes |
| luvbiotics | $34.49 | Lactobacillus reuteri | N/A | Up to 3 lozenges | N/A | Menthol | Yes |
| Life Extension FLORASSIST | $16.50 | Streptococcus salivarius M18, Immuno-LP20 | 1 billion | 1 lozenge | 10 mg | N/A | Yes |
Bad breath: what are the causes?
There are a great number of factors that can contribute to bad breath like dietary choices, poor healthcare habits, periodontal disease, dry mouth, and dental caries.
- Dry mouth. The reduction of salivary flow can favor the bacterial breakdown of food particles that stay in the mouth after eating, which increases VSC production, the main contributor to halitosis. A good example is morning breath.
- Smoking. The smoke of cigarettes may alter the balance of microbial populations in the mouth. Additionally, it might also aggravate the perception of the individual's breath odor.
- Dietary habits. Some foods, especially those containing volatile compounds such as garlic, onions, and spices, may have an impact on breath. Additionally, alcohol may also be a risk factor for malodor.
- Periodontal disease. Many studies have put forward a compelling case supporting a direct correlation between periodontal disease and halitosis. This is due to the favorable environment for pathogenic bacteria to thrive.
- Tongue coating. The tongue is a reservoir for different types of bacteria due to its cratered surface. These microbes, especially Veillonella and Actinomyces can produce unpleasantly smelling substances from food particles.
How can probiotics help prevent bad breath?
Probiotics are living microorganisms that have a myriad of benefits when consumed in appropriate amounts. There is a growing body of evidence that certain strains might affect the composition of the oral microbiome, improving oral health and reducing bad odor.
Firstly, due to their potential to compete with hydrogen sulfide-producing bacteria for binding sites on the tongue, making it difficult for the latter to proliferate.
Secondly, due to their potential to compete with the odor-causing bacteria for nutrition and other resources. This property makes it difficult for bad smell producing bacteria to survive inside the mouth.
Lastly, some strains may interfere with the pathogenic bacteria growth and proliferation in the mouth, reducing their number in the oral cavity.
Which oral probiotic strains are the best for bad breath?
Several strains are linked with the improvement of oral health. However, strains from Lactobacillus, Streptococcus, and Weissela genera are often associated with the reduction of bad breath.
In any case, we encourage a visit to the dentist to find out more about probiotics and their specific use for your case.
Lactobacillus
It is a lactic acid bacteria strain that may have some benefits in improving oral cavity health and reducing bad odors.
Some evidence suggests that it may relieve moderate to severe inflammation in gingivitis and reduce plaque build up. The latter is used to gauge overall mouth hygiene.
Additionally, Lactobacillus may be a good ally in aiding oral and dental diseases, such as caries, gingivitis, and periodontitis — conditions often linked with halitosis.
Streptococcus
Strain of bacteria that is non-pathogenic and predominant in the mouth.
Some initial trials suggest that this strain may reduce the levels of VSC-producing bacteria, reducing its proliferation and balancing out the mouth microenvironment. Furthermore, it may steal the bacterias’ resources and reduce their proliferating in the tongue.
Weissella genera
Weissella is a gram-positive lactic acid bacteria dominant in fermented foods, such as kimchi.
This strain has the property to inhibit oral pathogens and suppress volatile VSCs.
Some initial studies suggest that Weissella strains are very competitive for resources in the mouth. Therefore, it may reduce the VSC-producing bacteria and avoid malodors.
Benefits of using probiotics for bad breath
Probiotics have a myriad of qualities such as antimicrobial activities, formation of protective layers, neutralization of acidic pH, augmentation of the immune system, and reduction of pro-inflammatory cytokines. The combination of these properties may lead to the improvement of the oral cavity health and the prevention or reduction of halitosis. Additionally, they have been found to be significantly more effective in reducing the growth of various bacterial strains compared to oral antibacterial wash.
Furthermore, probiotics have the potential to protect from plaque buildup. This property may be linked with a reduction of caries and help conditions like periodontal disease, oral candidiasis, and oral mucositis.
How to use it?
The bacterial strains implicated in bad breath can vary from person to person. Additionally, the effectiveness of oral probiotics may also change depending on the form and method of use.
There are several forms like lozenges, toothpaste, and chewables. Most probiotic products come in lozenges — small tablets that dissolve in your mouth. They are usually mint or menthol-flavored and will take some time to completely break down in the mouth. In any case, it is always advisable to check the form and flavor of the probiotic product to select the one that suits your preferences.
Additionally, the use instructions of probiotic products depends highly on the brand. While some brands recommend taking up to 3 lozenges per day, others recommend only one serving daily. Besides, lozenges are usually taken after food or after cleaning the teeth. We encourage you to check the recommended usage of different products to select the best match for you.
Risks and side effects of probiotics for bad breath
Probiotics are usually safe to consume. Their use may cause mild side effects like mild abdominal cramping, gas, and nausea.
However, some probiotics might not be advisable for individuals with weakened immune systems or those taking immunosuppressant medications. Probiotic supplementation could cause an infection or pathogenic colonization in these cases
Additionally, some probiotics have added ingredients that might not be suitable for individuals with sensitivities or prone to allergic reactions. We encourage you to review the different brands to ensure the safety of the probiotics.
We also recommend a visit with your dentist to inquire about the potential use of probiotics and their side effects in your specific case.
How long does it usually take to see results?
The link between probiotics and halitosis is still severely understudied. There is limited research on the effect of oral probiotic products and the standardized period in which they show results.
Additionally, the effects of probiotics are linked to factors like age, health conditions, or bacterial strains. It is difficult to estimate the outcome, but keeping a healthy diet and good oral hygiene might help to boost their effect on halitosis.
Furthermore, it is always advisable to ask your doctor about use, dosage, and other considerations regarding probiotics.
Best probiotics for bad breath — conclusion
There is a wide variety of probiotics in the market that harness the properties of various beneficial microorganisms to support oral health. However, we encourage a thorough review of different strains and CFU counts used by different brand's to choose the product that best suits your needs.
Additionally, formulation plays an important part. Some ingredients may not be suitable for some individuals, like children or pregnant women.
Lastly, we would like to remind you that probiotics should never be considered as medication for halitosis. It is key to consult a dentist on the best use of probiotics for your specific case.
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FAQ
What is the best probiotic brand for bad breath?
Depends. There are different brands with different focuses in mind. It is always advisable to review formulas, bacterial strains, CFU, and other additional information to choose the one that best suits your needs.
Can probiotics get rid of bad breath?
Likely. There are many reasons behind halitosis, including diet, oral hygiene, smoking, and various underlying health conditions. Oral probiotics have been previously researched and shown to reduce the growth of various bacterial strains associated with bad breath, however, research is limited.
Can probiotics worsen bad breath in some cases?
Unlikely. Current research conveys that the effect of probiotics is the opposite - it might be effective in reducing bad mouth odor. However, these effects can vary between individuals.
How can probiotics help prevent smelly breath?
Probiotics can help to balance the bacteria living in the oral cavity. By reducing the activity of "bad" microbes, they also reduce the production of malodors. Additionally, they can be good allies aiding other conditions associated with bad breath like periodontitis.
- Elsevier. Alleviation of halitosis by use of probiotics and their protective mechanisms in the oral cavity.
- BMJ open. Efficacy of probiotics in the management of halitosis: a systematic review and meta-analysis.
- Australian Dental Journal. Halitosis: prevalence, risk factors, sources, measurement and treatment – a review of the literature.
- Frontiers in Nutrition. Role of Probiotics in Halitosis of Oral Origin: A Systematic Review and Meta-Analysis of Randomized Clinical Studies.
- Frontiers in microbiology. Role of Lactobacillus reuteri in Human Health and Diseases.
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