Embarrassed about bad breath? You’re not alone.
Bad breath, or halitosis, is really common, with many potential causes—from diet to oral hygiene. If you’re worried that your breath smells bad, and is noticeable to others, you could try a mouth freshening spray. It is a simple, and effective solution to freshen your breath when you’re on the go.
As a dentist, I’m often asked about effective ways to freshen breath—especially when you need a quick fix during the day. Mouth sprays can be a convenient and discreet solution.
Many of them combine fresh-smelling essential oils like peppermint, spearmint, or tea tree with active antimicrobial ingredients. Look out for ingredients such as zinc and cetylpyridinium chloride, which target the bacteria and volatile sulphur compounds (VSCs) that cause unpleasant odours. Unlike chewing gum or mints, which simply mask bad breath, a high-quality mouth spray can actually tackle the problem at its source.
When choosing a mouth spray, opt for an alcohol-free formula. Alcohol-based sprays can dry out your mouth, which may actually make bad breath worse over time.
The spray’s longevity matters too; some provide freshness for 30 minutes while others last several hours. You’ll also want to consider taste preferences, portability, and whether you’re looking for a natural or medicated solution.
Over the past 3 months, we’ve been testing dozens of breath sprays. to find the ones that genuinely eliminate bad breath, rather than simply masking it. Below are our top picks, based on effectiveness, ingredients and taste
Quick Overview
Do Breath Sprays Actually Work?
It’s a common question—and the answer is yes, to a degree. There are some great options on the market that offer a quick fix when you need it most. While these handy little sprays can be a lifesaver when you’re caught short, they’re not a magic solution for ongoing or chronic issues.
Here’s the science bit: Most high-quality breath sprays contain antibacterial ingredients that target the bacteria responsible for bad breath. Common active ingredients include zinc compounds, chlorine dioxide, and cetylpyridinium chloride. These help to neutralise volatile sulphur compounds (VSCs)—the gases that cause unpleasant odours.
When used properly, breath sprays can be quite effective for temporary relief. Think of them as your quick fix when you need fresh breath in a hurry.
In fact, research published in the British Dental Journal suggests that zinc-containing breath sprays can reduce volatile sulphur compounds by up to 80% for around 2 to 3 hours.
That said, it’s important to remember that breath sprays address the symptoms, not the cause. If you’re dealing with persistent or chronic bad breath, it’s a good idea to speak with your dentist to get to the root of the problem.
Top 6 Picks for Best Spray for Bad Breath
Best Spray for Bad Breath Overall – Zima Fresh
Best Strong Mint Spray for Bad Breath – Listerine Pocketmist Cool Mint
Best Long Lasting Spray for Bad Breath – CB 12 Spray
Best Medicated Spray for Bad Breath – UltraDEX Fresh Breath Spray
Best Value Spray for Bad Breath – MEDEX Minty Fresh Breath
Best Flavoured Spray for Bad Breath – Haiyox Fruit Oral Breath Spray
Best Spray for Bad Breath Overall
Zima Fresh
Key Features:
Sleek design, great size for travel
Vitamins B6, C, D2, E, K2 aid teeth remineralisation, calcification, and act against gum disease
Can be used to spray and freshen retainer and aligners
10% Discount Code: BAS9FEUOIL
Why our dentists recommend this spray:
As someone who wears retainers regularly, I’ve found it can be tricky to maintain fresh breath and good oral hygiene—especially after wearing them for several hours. That’s why I started using Zima Fresh, and it’s made a noticeable difference. It keeps my breath fresher for longer and gives me more confidence throughout the day.
The spray not only provides instant freshness, but also helps protect my teeth from decay by neutralising harmful acids and bacteria that tend to build up under aligners. It’s packed with natural vitamins and ingredients that support enamel health and gum care.
Using Zima Fresh is simple: just a couple of sprays on my retainers before putting them back in, and another couple directly into my mouth. This quick step helps keep my aligners smelling fresh, reduces bacterial growth, and prevents bad breath and staining.
Since adding it to my daily routine, I’ve noticed my retainers feel cleaner and my breath stays fresher for longer.
I also love the clever twist-open, twist-close design, which keeps the nozzle tucked away when not in use—perfect for keeping it clean in your bag or pocket. Each pack comes with a set of three sprays, which easily lasts around six months.
Flavour: Mild Mint
Freshness: 8/10, last around 2 hours
Portability: 10/10 (easy to find and use)
Price: Approx £5 each
Best Strong Mint Spray for Bad Breath
Listerine Pocketmist Cool Mint
Key Features:
Strongest mint flavour we reviewed
Pocket sized, non aerosol design (One handed spray)
Eliminates 99% of bad breath germs* (2)
Sugar free formula
Con: Contains Alcohol
Why our dentists recommend this spray:
I’ve found Listerine Pocketmist Cool Mint incredibly convenient—perfect for carrying around and using whenever I need a quick refresh. The cool mint flavour is strong but not overpowering, leaving my mouth feeling instantly clean and revitalised.
What I really like about this spray is how easy it is to use: just a couple of quick sprays and my breath feels fresh right away. It also has that classic Listerine antimicrobial effect, so it’s not just masking odours—it’s actually helping to reduce the bacteria that cause them.
It’s especially useful between meals or after coffee, when you want to freshen up without needing water or a toothbrush.
One thing to note: it does contain alcohol, which can cause mouth dryness with frequent use. So while it’s effective, it may not be the best choice for everyone—especially if you’re prone to dry mouth.
Flavour: Strong Mint
Freshness: 10/10
Portability: 8/10 (pocket size, could be hard to find in a handbag)
Price: Approx £4 (140 sprays)
Best Long Lasting Spray for Bad Breath
CB 12 Spray
Why our dentists recommend this spray:
CB12 Mouth Spray is an effective and convenient solution for maintaining fresh breath throughout the day. Its advanced formulation targets and neutralises the compounds responsible for bad breath, delivering long-lasting freshness. The compact 15ml spray bottle is perfect for carrying discreetly, so you’re always ready for a quick refresh.
Formulated with patented Zinc Acetate technology, this spray neutralises the volatile sulphur compounds (VSCs) that cause bad breath. The alcohol-free formula provides a gentle yet powerful solution, making it ideal for daily use without causing dryness or irritation.
I found the flavour to be pleasant, and the effects lasted longer than most of the other sprays I tested. It definitely stood out for its lasting freshness.
For an extra boost, CB12 Mouthwash has received numerous positive reviews and comes highly recommended. It’s an excellent product to pair with this spray for a complete breath-freshening routine.
Flavour: Mild Peppermint
Freshness: 8/10
Portability: 9/10
Price: Approx £4
Best Medicated Spray for Bad Breath Overall
UltraDEX Fresh Breath Spray
Key Features:
Active Ingredient: stabilised Chlorine Dioxide (3)
Clinically proven to eliminate bad breath instantly for 12 hours
Contains fluoride to help protects teeth and gums
Compact 9ml size
Why our dentists recommend this spray:
I recommend UltraDEX Fresh Breath Spray for its scientifically proven effectiveness in treating halitosis. The spray uses stabilised chlorine dioxide, which creates an environment that neutralises odour-causing bacteria and volatile sulphur compounds, providing long-lasting fresh breath. Research supports its ability to reduce morning breath, bacterial counts, and plaque formation, all while being safe for regular use. (3)
Its compact 9ml size means it’s convenient to carry with you throughout the day, for when you need to freshen up on the go.
Im particularly impressed by the sprays performance longevity- it is proven to keep bad breath at bay for up to 12 hours.
I’ve got to say, I found the mint taste a bit strong, and had an unpleasant aftertaste: though this doesn’t take away from its effectiveness.
Flavour: Mint, but has a lingering aftertaste
Freshness: 7/10
Portability: 9/10
Price: Approx £3
Best Value Spray for Bad Breath
MEDEX Minty Fresh Breath
Key Features:
Simple design
3 Pack
Larger 20ml Bottle
Why our dentists recommend this spray:
MEDEX Minty Breath Freshener offers a cheap and cheerful solution for instantly neutralising bad breath with its concentrated minty formula, though it doesn’t contain the zinc or chlorine dioxide active ingredients found in more medically-oriented alternatives.
This portable spray delivers a clean, refreshing sensation that effectively combats food odours but may not provide the same long-lasting protection as higher-end products.
The packaging does however state that overuse can have a laxative effect, so use in moderation.
I recommend this affordable option for individuals seeking reliable, discreet breath freshening throughout the day, particularly in social and professional situations where it can deliver immediate confidence.
Flavour: Mint
Freshness: 7/10
Portability: 7/10
Price: Approx £1.50
Best Spray for Bad Breath Flavoured
Haiyox Fruit Oral Breath Spray
Key Features:
5 fun fruity flavours
Gentle and refreshing
Alcohol-free
Why our dentists recommend this spray:
Haiyox Fruit Oral Breath Spray is a great, refreshing alternative to the usual mint breath sprays. With a range of fruity flavours, there’s something for everyone—some taste great, others are a bit more hit or miss, but it’s nice to have a variety to choose from.
This non-medicated, budget-friendly option is perfect for younger people, or anyone who isn’t a fan of minty fresheners, including those with sensory issues. It’s a nice change from the typical mint sprays and a good choice for those who want something a bit different without the strong, clinical taste of medicated sprays.
Flavours: Watermelon, Lychee, Peach, Grape and Orange
Freshness: 6/10
Portability: 8/10
Price: Approx £8 for 5 pack
Buying Guide For Breath Sprays
When shopping for a breath spray, keep these key factors in mind:
Alcohol-Free Formula: Alcohol-based sprays can be very strong, and kill both the good and bad bacteria in your mouth. Instead, opt for a gentler alcohol-free spray to maintain a healthy oral microbiome. While Listerine is the only product in this review with alcohol, I still included it in my recommendations specifically for its exceptional strength of refreshing power.
Natural Ingredients: Look for sprays with natural ingredients that benefit your oral health:
Peppermint essential oil: Provides natural freshness and antimicrobial properties.
Aloe vera: Soothes and heals
Menthol crystal: Gives a cool and long-lasting freshness.
Hyaluronic acid: Helps keep your mouth moisturised.
Orange peel extract: Adds a natural citrus freshness.
Avoid Harmful Additives: Skip products with harsh chemicals like Sodium Lauryl Sulphate (SLS), as they can irritate your mouth over time.
Performance Factors:
Longevity: Look for sprays that keep your breath fresh for hours, not just 30 minutes.
Taste: Choose a flavour you actually enjoy using, whether that’s mint or something fruitier.
Practical Considerations: Check the size and design of the bottle. Will it fit easily in your pocket or bag? Is the spray mechanism leak-proof and reliable?
Ultimately, the best breath spray for you will balance effectiveness with ingredients you feel comfortable using every day.
Will Mouth Sprays Actually Work for You?
Wondering if mouth sprays can really help with bad breath? The answer depends on the cause of your bad breath.
For Dry Mouth Sufferers:
Mouth sprays act as a temporary saliva substitute, helping keep your mouth moist and reducing bacteria that thrive in dry conditions. They provide quick relief, especially when you’re away from home or in situations like meetings or social gatherings where you need confidence and comfort. Keep in mind, though, they’re not a permanent fix but can be a real lifesaver in the moment.
For Typical Bad Breath:
Mouth sprays are great for providing temporary freshness, usually lasting 1-2 hours. They create a minty barrier that helps wash away bacteria and food particles. But remember, these sprays aren’t a substitute for good oral hygiene habits- you still need to brush twice daily, and floss regularly. If your bad breath is due to poor oral hygiene, you’ll need to improve your habits for lasting results.
Additional Benefits:
Some mouth sprays also offer protection against plaque and cavities while supporting overall gum health.
If bad breath persists despite using sprays regularly, it’s time to make an appointment with your dentist. Persistent halitosis could signal underlying health issues that need professional attention.
How Do Fresh Breath Sprays Work?
Breath sprays do more than just mask bad breath—they work in a few clever ways to help you feel fresher and more confident.
1. Masking Odours Instantly
Most sprays contain minty flavours that give you that immediate fresh feeling. This helps cover up bad breath on the spot, especially after eating or drinking something strong.
2. Fighting the Source
Good quality sprays go beyond just masking smells. They include active ingredients like chlorine dioxide, chlorhexidine, cetylpyridinium chloride, or zinc ions, which fight the bacteria that actually cause bad breath.
3. Helping Dry Mouth
Dry mouth is a major contributor to bad breath. Some sprays are designed to act as a saliva substitute, adding moisture to your mouth when it’s not producing enough naturally. This helps wash away odour-causing particles.
4. Creating a Moisture Barrier
Many sprays leave behind a protective layer that not only keeps your mouth feeling less dry but also slows down bacterial growth. Just be cautious with alcohol-based sprays—they may feel refreshing at first but can lead to more dryness over time as the alcohol evaporates.
Top Tips from a Dentist
Aim Smart
Spray directly onto your tongue—not your throat or cheeks. That’s where most of the odour-causing bacteria live. A quick spritz on the tongue gives you the most effective results.
Give It Time
Avoid drinking anything for at least 30 seconds after using a breath spray. This gives the active ingredients time to do their job and properly neutralise bad breath.
Don’t Overdo It
Use sprays as needed, not constantly. They’re a helpful quick fix, but they shouldn’t replace good oral hygiene. If you’re relying on them all the time, there might be a deeper issue that needs attention.
IMPORTANT: DONT SKIP THE BASICS!
Brush twice a day with an electric toothbrush and a fluoride toothpaste
Floss once daily to remove food particles between teeth
Use a tongue scraper to tackle bacteria on your tongue
Stay hydrated – dry mouth is a common cause bad breath
Schedule regular dental check-ups
Breath sprays work best as part of a complete oral care routine—not instead of one!
What Causes Bad Breath (Halitosis)?
There are plenty of reasons why your breath might not be as fresh as you’d like. Some are temporary, while others may need a bit more attention.
Food & Drink
Certain foods—like garlic, onions, and spicy dishes—are well-known for causing short-term bad breath. This usually clears up on its own once the food has been digested.
Poor Oral Hygiene
Skipping brushing or flossing gives leftover food particles a chance to feed bacteria in your mouth. The result? Odour, plaque build-up, and potential gum issues. Good hygiene is your first line of defence.
Dry Mouth
Not producing enough saliva? That’s a problem. Saliva helps cleanse the mouth and wash away bacteria. Dry mouth can be caused by medications, dehydration, or certain health conditions—and it often leads to bad breath.
Tonsil Stones
Tiny bits of food can get trapped in your tonsils, harden into stones, and release an unpleasant smell. If you’ve never heard of them before, they’re surprisingly common and a sneaky cause of halitosis.
Underlying Health Conditions
Persistent bad breath can sometimes signal something more serious. Conditions like diabetes, GERD, liver disease, pneumonia, and even head and neck cancers may be to blame.
Other Common Causes of bad breath
Gum disease (periodontitis)
Nose, throat, or sinus infections
Smoking or tobacco use
If your bad breath sticks around despite good hygiene and using breath sprays, it’s worth checking in with your dentist or GP. It might be a sign of something that needs further investigation.
Frequently Asked Questions
How effective are breath fresheners in combating persistent odour and what’s the science behind them?
Breath fresheners generally work in two key ways:
Masking odours with strong, pleasant flavours like mint.
Killing odour-causing bacteria with antimicrobial agents such as chlorhexidine, cetylpyridinium chloride, or zinc compounds.
The science behind this is pretty clever—these ingredients disrupt the bacterial cell walls and prevent them from producing volatile sulphur compounds (VSCs), which are the main culprits behind unpleasant breath. A 2022 clinical study showed that quality breath sprays can reduce bad breath by up to 78% for 2–4 hours.
In cases of severe bad breath, like from decaying teeth—what actually works?
If your bad breath is caused by tooth decay, breath sprays won’t be enough. In these cases, professional dental treatment is essential. The odour is typically due to bacterial infection and decomposing tooth structure, which needs to be properly treated—not just masked.
Dentists will aim to treat the underlying problem. This may include fillings, root canals, or extractions. They may also advised an improved oral hygiene regimen, and suggest antibacterial mouth rinses, such as one containing chlorhexidine 0.12%.
While you’re waiting for treatment, zinc-based sprays like CB12 can offer short-term relief. Zinc binds to sulphur compounds (the smelly culprits) and helps neutralise odour instead of just covering it up.
Water flossers can also be beneficial—they’re great for removing debris and plaque between teeth, which helps reduce the bacteria that contribute to strong odours.
What are the key ingredients to look for in a breath spray that genuinely tackles bad breath?
While no spray can permanently eliminate bad breath, certain active ingredients are proven to provide longer-lasting freshness by targeting the source rather than just masking odour:
Zinc compounds (e.g. zinc chloride or zinc gluconate): These bind to volatile sulphur compounds (VSCs)—the main cause of bad breath—and neutralise them effectively.
Chlorine dioxide: A strong antimicrobial that oxidises and breaks down VSCs, helping eliminate bad odours at the molecular level.
Cetylpyridinium chloride (CPC): A broad-spectrum antimicrobial that disrupts bacterial cell membranes, reducing both plaque and bad breath bacteria.
Essential oils like peppermint, tea tree, and thyme: These offer natural antimicrobial benefits and a fresh taste, making them ideal for daily use.
For the best results, choose a combination spray that includes both antibacterial and odour-neutralising ingredients. And remember—breath sprays work best as part of a complete oral care routine.
How do breath mints compare to sprays in terms of providing long-lasting fresh breath?
Breath sprays generally outperform mints when it comes to longer-lasting freshness. A study in the British Dental Journal found that sprays can maintain fresh breath for 2–4 hours, whereas mints typically last only 30–60 minutes.
The key difference lies in both delivery method and ingredients. Sprays coat more surfaces in the mouth—including the tongue and back of the throat—and often contain antimicrobial agents that actively reduce odour-causing bacteria. Mints, on the other hand, tend to mask odours with flavouring agents and don’t usually tackle the root cause.
IMPORTANT: Many mints contain sugar, which can actually feeds the bacteria that causes bad breath, and cause tooth decay.I’ve seen this firsthand with patients. If you prefer mints, always choose sugar-free options with xylitol, as xylitol helps inhibit bacterial growth.
Our verdict
There are some excellent breath sprays on the market that offer effective short-term relief. Use them to boost your confidence—but always alongside a solid oral hygiene routine and regular dental check-ups.
My personal favourite, is the Zima Fresh. I’ve kept one handy to freshen up my retainers. It is a standout choice for those wearing aligners, retainers, or dentures, offering freshness and oral health boosting vitamins
I also recommend medicated sprays like CB 12 Spray (with Zinc Acetate) and UltraDEX Fresh Breath Spray (with chlorine dioxide). They offer the most consistent performance in neutralising odours.
If you’re experiencing persistent bad breath, your first step should be a visit to your dentist for a full oral health check. If no dental cause is found, your GP can help investigate other possible issues, such as gut-related problems or underlying medical conditions.
