Best Mouthwash of 2025

Last updated on 30/10/2025

Advertising disclosure

Most Relevant

Most Relevant

Best Choice

Colgate Plax Mouthwash, Cool Mint Mouthwash with 24/7* Plaque Protection, Alcohol Free Mouthwash** with Fluoride, Vegan Mouthwash, Multipack, 4 Pack, 500ml Bottles

Colgate Plax Mouthwash, Cool Mint Mouthwash with 24/7* Plaque Protection, Alcohol Free Mouthwash** with Fluoride, Vegan Mouthwash, Multipack, 4 Pack, 500ml Bottles

Colgate

19% OffFree Shipping

Why we love it

Provides 24/7 plaque protection.
Enjoy cool, lasting freshness.
No alcohol, burning sensation.

Main Highlights

WHAT YOU'LL GET: Includes four (4) 500ml Colgate Plax Cool Mint Mouthwash bottles featuring a vegan formula without any alcohol**
COLGATE MINT MOUTHWASH: Fight bad breath and feel fresh and protected with 24/7* plaque protection when you use this specially designed Colgate mouthwash
ALCOHOL FREE MOUTHWASH: Colgate Plax is a vegan, fluoride mouthwash that contains 0% alcohol** for complete freshness without the burning sensation
FRESHER BREATH: Enjoy a cool mint flavour with a new cooling sensation powered by FreshFX technology for long-lasting freshness
UK'S TOP BRAND: Colgate is the number one dentist-recommended brand*** for toothpaste when it comes to dental health
*Plaque bacteria, when used twice daily **No ethyl alcohol ***Colgate Brand, Toothpaste, UK, Dentist Surgery 2021

9.7

Exceptional

9.7

Exceptional

Colgate

Colgate Plax Mouthwash, Cool Mint Mouthwash with 24/7* Plaque Protection, Alcohol Free Mouthwash** with Fluoride, Vegan Mouthwash, Multipack, 4 Pack, 500ml Bottles

19% OffFree Shipping

Why we love it

Provides 24/7 plaque protection.
Enjoy cool, lasting freshness.
No alcohol, burning sensation.

Main Highlights

WHAT YOU'LL GET: Includes four (4) 500ml Colgate Plax Cool Mint Mouthwash bottles featuring a vegan formula without any alcohol**
COLGATE MINT MOUTHWASH: Fight bad breath and feel fresh and protected with 24/7* plaque protection when you use this specially designed Colgate mouthwash
ALCOHOL FREE MOUTHWASH: Colgate Plax is a vegan, fluoride mouthwash that contains 0% alcohol** for complete freshness without the burning sensation
FRESHER BREATH: Enjoy a cool mint flavour with a new cooling sensation powered by FreshFX technology for long-lasting freshness
UK'S TOP BRAND: Colgate is the number one dentist-recommended brand*** for toothpaste when it comes to dental health
*Plaque bacteria, when used twice daily **No ethyl alcohol ***Colgate Brand, Toothpaste, UK, Dentist Surgery 2021

Value for Money

The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500 ml

The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500 ml

The Breath Co.

14% OffFree Shipping

Why we love it

Provides 12 hours fresh breath.
Formula neutralizes bad breath.
Ideal for sensitive mouths.

Main Highlights

12 Hours of Fresh Breath: The Breath Co Fresh Breath Oral Rinse fights bad breath for 12 hours with our unique pH balanced formula, giving you long-lasting confidence with every use
Powered by Active Oxygen: Our unique formula powered by active oxygen is clinically shown to neutralise bad breath and cleans the whole mouth, even in hard-to-reach places
Dentist Formulated: Created by Dr. Harold Katz to help his daughter overcome her chronic bad breath, our mouthwash is made from his breakthrough research into fighting odour-causing mouth bacteria
PH Balanced: Our unique formula is pH-balanced, unlike other acid-based mouthwashes, and helps to resist daily acidic attacks that can harm your teeth enamel and gums
Alcohol Free: Our non-burning mouthwash is free from alcohol that can irritate and dehydrate the mouth, which when dehydrated can increase odour causing bacteria
Clean Label: Our mouthwash is made to the highest standards with no artificial dyes or saccharin, and is suitable for kosher, halal, gluten free, vegetarian, and vegan diets

The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500 ml

14% OffFree Shipping

Why we love it

Provides 12 hours fresh breath.
Formula neutralizes bad breath.
Ideal for sensitive mouths.

Main Highlights

12 Hours of Fresh Breath: The Breath Co Fresh Breath Oral Rinse fights bad breath for 12 hours with our unique pH balanced formula, giving you long-lasting confidence with every use
Powered by Active Oxygen: Our unique formula powered by active oxygen is clinically shown to neutralise bad breath and cleans the whole mouth, even in hard-to-reach places
Dentist Formulated: Created by Dr. Harold Katz to help his daughter overcome her chronic bad breath, our mouthwash is made from his breakthrough research into fighting odour-causing mouth bacteria
PH Balanced: Our unique formula is pH-balanced, unlike other acid-based mouthwashes, and helps to resist daily acidic attacks that can harm your teeth enamel and gums
Alcohol Free: Our non-burning mouthwash is free from alcohol that can irritate and dehydrate the mouth, which when dehydrated can increase odour causing bacteria
Clean Label: Our mouthwash is made to the highest standards with no artificial dyes or saccharin, and is suitable for kosher, halal, gluten free, vegetarian, and vegan diets

Wisdom Chlorhexidine Alcohol Mouthwash - Mint (2 x 300ml Bottles)

Wisdom

3% Off

Why we love it

Contains effective chlorhexidine formula.
Helps prevent bad breath.
Combats gum problems effectively.

Main Highlights

Contains Alcohol
Combat gum problems
Fight plaque
Prevent bad breath
0.2% chlorhexidine

Wisdom Chlorhexidine Alcohol Mouthwash - Mint (2 x 300ml Bottles)

3% Off

Why we love it

Contains effective chlorhexidine formula.
Helps prevent bad breath.
Combats gum problems effectively.

Main Highlights

Contains Alcohol
Combat gum problems
Fight plaque
Prevent bad breath
0.2% chlorhexidine

The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, ICY Mint Flavour, 300 ml

The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, ICY Mint Flavour, 300 ml

The Breath Co.

Free Shipping

Why we love it

Long-lasting fresh breath guaranteed.
Clinically proven odor neutralization.
Gentle, alcohol-free formulation.

Main Highlights

12 Hours of Fresh Breath: The Breath Co Fresh Breath Oral Rinse fights bad breath for 12 hours with our unique pH balanced formula, giving you long-lasting confidence with every use
Powered by Active Oxygen: Our unique formula powered by active oxygen is clinically shown to neutralise bad breath and cleans the whole mouth, even in hard-to-reach places
Dentist Formulated: Created by Dr. Harold Katz to help his daughter overcome her chronic bad breath, our mouthwash is made from his breakthrough research into fighting odour-causing mouth bacteria
PH Balanced: Our unique formula is pH-balanced, unlike other acid-based mouthwashes, and helps to resist daily acidic attacks that can harm your teeth enamel and gums
Alcohol Free: Our non-burning mouthwash is free from alcohol that can irritate and dehydrate the mouth, which when dehydrated can increase odour causing bacteria

The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, ICY Mint Flavour, 300 ml

Free Shipping

Why we love it

Long-lasting fresh breath guaranteed.
Clinically proven odor neutralization.
Gentle, alcohol-free formulation.

Main Highlights

12 Hours of Fresh Breath: The Breath Co Fresh Breath Oral Rinse fights bad breath for 12 hours with our unique pH balanced formula, giving you long-lasting confidence with every use
Powered by Active Oxygen: Our unique formula powered by active oxygen is clinically shown to neutralise bad breath and cleans the whole mouth, even in hard-to-reach places
Dentist Formulated: Created by Dr. Harold Katz to help his daughter overcome her chronic bad breath, our mouthwash is made from his breakthrough research into fighting odour-causing mouth bacteria
PH Balanced: Our unique formula is pH-balanced, unlike other acid-based mouthwashes, and helps to resist daily acidic attacks that can harm your teeth enamel and gums
Alcohol Free: Our non-burning mouthwash is free from alcohol that can irritate and dehydrate the mouth, which when dehydrated can increase odour causing bacteria

Listerine Cool Mint Mouthwash Pack of 4 (4 x 750ml), Helps Kill Up to 99% of Germs Left After Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gums

Listerine Cool Mint Mouthwash Pack of 4 (4 x 750ml), Helps Kill Up to 99% of Germs Left After Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gums

Listerine

36% OffFree Shipping

Why we love it

Efficiently kills 99% of germs.
Significantly reduces dental plaque.
Promotes fresh breath health.

Main Highlights

Listerine is the 1# mouthwash brand in the UK & Ireland*. This mouthwash is designed to kill up to 99% of bacteria that cause plaque and bad breath left after brushing with plaque reduced by up to 56% more than brushing alone
Maintain healthy gums with the formula of this daily mouthwash which also helps provide long-lasting fresh breath confidence when used twice daily
The Listerine Cool Mint mouthwash is proven to be 5x more effective than floss at reducing plaque** (**Germ kill provides sustained plaque reduction above the gumline after a dental cleaning. Use alongside brushing and flossing)
How to use: Pour 20ml (4 x 5ml teaspoonfuls) of Listerine mouthwash into a glass, rinse around teeth and gums for 30 seconds, then spit out. Especially effective when used morning and evening after brushing
Product details: Listerine Cool Mint Mouthwash Pack of 4 (4 x 750ml), helps to kill plaque- and bad breath-causing germs to maintain healthy gums and lasting fresh breath confidence

Listerine Cool Mint Mouthwash Pack of 4 (4 x 750ml), Helps Kill Up to 99% of Germs Left After Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gums

36% OffFree Shipping

Why we love it

Efficiently kills 99% of germs.
Significantly reduces dental plaque.
Promotes fresh breath health.

Main Highlights

Listerine is the 1# mouthwash brand in the UK & Ireland*. This mouthwash is designed to kill up to 99% of bacteria that cause plaque and bad breath left after brushing with plaque reduced by up to 56% more than brushing alone
Maintain healthy gums with the formula of this daily mouthwash which also helps provide long-lasting fresh breath confidence when used twice daily
The Listerine Cool Mint mouthwash is proven to be 5x more effective than floss at reducing plaque** (**Germ kill provides sustained plaque reduction above the gumline after a dental cleaning. Use alongside brushing and flossing)
How to use: Pour 20ml (4 x 5ml teaspoonfuls) of Listerine mouthwash into a glass, rinse around teeth and gums for 30 seconds, then spit out. Especially effective when used morning and evening after brushing
Product details: Listerine Cool Mint Mouthwash Pack of 4 (4 x 750ml), helps to kill plaque- and bad breath-causing germs to maintain healthy gums and lasting fresh breath confidence

Listerine Total Care 10 in 1 Mouthwash 1L

Listerine Total Care 10 in 1 Mouthwash 1L

Listerine

30% OffFree Shipping

Why we love it

Kills bacteria, freshens breath.
Strengthens, protects teeth.
Superior plaque reduction.

Main Highlights

Listerine is the 1# mouthwash brand in the UK & Ireland*. This product is designed to kill up to 99% of bacteria that cause plaque and bad breath left after brushing for 12-hour germ protection and up to 24-hour fresh breath protection when used twice daily
This fluoride mouthwash is designed to remineralise enamel, strengthen teeth, and offer gum protection, while zinc chloride acts to help prevent tartar — teeth are protected from cavities and decay
Proven to be 5x more effective than floss at reducing plaque** (**Germ kills provides sustained plaque reduction above the gumline after a dental cleaning. Use alongside brushing and flossing)
How to use: Pour 20ml (4 x 5ml teaspoonfuls) of Listerine mouthwash into a glass, rinse around teeth and gums for 30 seconds, then spit out. Especially effective when used morning and evening after brushing
Product details: Listerine Total Care Antibacterial Mouthwash (1000ml), helps to reduce plaque, freshen breath, help prevent tartar build-up, and keep teeth naturally white, while helping strengthen teeth with fluoride

Listerine Total Care 10 in 1 Mouthwash 1L

30% OffFree Shipping

Why we love it

Kills bacteria, freshens breath.
Strengthens, protects teeth.
Superior plaque reduction.

Main Highlights

Listerine is the 1# mouthwash brand in the UK & Ireland*. This product is designed to kill up to 99% of bacteria that cause plaque and bad breath left after brushing for 12-hour germ protection and up to 24-hour fresh breath protection when used twice daily
This fluoride mouthwash is designed to remineralise enamel, strengthen teeth, and offer gum protection, while zinc chloride acts to help prevent tartar — teeth are protected from cavities and decay
Proven to be 5x more effective than floss at reducing plaque** (**Germ kills provides sustained plaque reduction above the gumline after a dental cleaning. Use alongside brushing and flossing)
How to use: Pour 20ml (4 x 5ml teaspoonfuls) of Listerine mouthwash into a glass, rinse around teeth and gums for 30 seconds, then spit out. Especially effective when used morning and evening after brushing
Product details: Listerine Total Care Antibacterial Mouthwash (1000ml), helps to reduce plaque, freshen breath, help prevent tartar build-up, and keep teeth naturally white, while helping strengthen teeth with fluoride

Corsodyl Prevents gum disease & Bleeding Gum Treatment, Medicated Antibacterial Mouthwash, Original Alcohol Free, 300 ml

Corsodyl Prevents gum disease & Bleeding Gum Treatment, Medicated Antibacterial Mouthwash, Original Alcohol Free, 300 ml

Corsodyl

Free Shipping

Why we love it

Kills gum disease quickly.
Promotes good oral hygiene.
Effective gingivitis treatment.

Main Highlights

Corsodyl Original Alcohol Free Mouthwash is a medicine containing chlorhexidine digluconate to treat the early signs of gum disease
This medicated mouthwash is an effective gingivitis treatment, killing the main cause of gum disease in just 30 seconds*
Promotes good oral hygiene and healing after dental surgery or treatment, can be used as an aid to manage denture sore mouth, oral thrush or recurring mouth ulcers, and stops bleeding, swollen, and inflamed gums
This anti-bacterial mouthwash in 300ml comes in aniseed flavour
A short-term intensive treatment, pour 10ml of Corsodyl Mouthwash, rinse for 1 minute, and then spit it out. Use twice daily.
Corsodyl Original Mouthwash contains chlorhexidine digluconate. For the treatment of gingivitis. Always read the label.

Corsodyl Prevents gum disease & Bleeding Gum Treatment, Medicated Antibacterial Mouthwash, Original Alcohol Free, 300 ml

Free Shipping

Why we love it

Kills gum disease quickly.
Promotes good oral hygiene.
Effective gingivitis treatment.

Main Highlights

Corsodyl Original Alcohol Free Mouthwash is a medicine containing chlorhexidine digluconate to treat the early signs of gum disease
This medicated mouthwash is an effective gingivitis treatment, killing the main cause of gum disease in just 30 seconds*
Promotes good oral hygiene and healing after dental surgery or treatment, can be used as an aid to manage denture sore mouth, oral thrush or recurring mouth ulcers, and stops bleeding, swollen, and inflamed gums
This anti-bacterial mouthwash in 300ml comes in aniseed flavour
A short-term intensive treatment, pour 10ml of Corsodyl Mouthwash, rinse for 1 minute, and then spit it out. Use twice daily.
Corsodyl Original Mouthwash contains chlorhexidine digluconate. For the treatment of gingivitis. Always read the label.

Colgate Peroxyl Antiseptic Mint Flavour 300ml Mouthwash, Relieves Minor Mouth and Gum Irritations, (Pack of 1)

Colgate Peroxyl Antiseptic Mint Flavour 300ml Mouthwash, Relieves Minor Mouth and Gum Irritations, (Pack of 1)

Colgate

5% OffFree Shipping

Why we love it

Unique oxygenating cleansing action.
Relieves minor gum irritations.
Clinically proven gum care.

Main Highlights

Unique Oxigenating cleansing action kills bacteria, prevents germs from spreading and flushes out debris & plaque
Relieves minor mouth and Gum irritations
Antibacterial effect on anaerobic bacteria
Clinically proven to reduce gum inflammation*
1.5% Hydrogen Peroxyde alcohol free mouthwash

Colgate Peroxyl Antiseptic Mint Flavour 300ml Mouthwash, Relieves Minor Mouth and Gum Irritations, (Pack of 1)

5% OffFree Shipping

Why we love it

Unique oxygenating cleansing action.
Relieves minor gum irritations.
Clinically proven gum care.

Main Highlights

Unique Oxigenating cleansing action kills bacteria, prevents germs from spreading and flushes out debris & plaque
Relieves minor mouth and Gum irritations
Antibacterial effect on anaerobic bacteria
Clinically proven to reduce gum inflammation*
1.5% Hydrogen Peroxyde alcohol free mouthwash

Colgate Triple Action Mouthwash with CPC, 500ml

Colgate

Why we love it

Freshens breath effectively.
Strengthens and protects enamel.
Fights bacteria efficiently.

Main Highlights

Get the triple action range for optimal oral care
Freshens breath
Triple action, bad breath, bad breath control, strengthen enamel, stronger enamel
Mild mint
Get the triple action range for optimal oral care
Mild Mint
Get the Triple Action range for optimal oral care!
Freshens breath
Triple Action, Bad Breath, Bad Breath Control, Strengthen Enamel, Stronger Enamel, Antibacterial Mouthwash
Fights bacteria

Colgate Triple Action Mouthwash with CPC, 500ml

Why we love it

Freshens breath effectively.
Strengthens and protects enamel.
Fights bacteria efficiently.

Main Highlights

Get the triple action range for optimal oral care
Freshens breath
Triple action, bad breath, bad breath control, strengthen enamel, stronger enamel
Mild mint
Get the triple action range for optimal oral care
Mild Mint
Get the Triple Action range for optimal oral care!
Freshens breath
Triple Action, Bad Breath, Bad Breath Control, Strengthen Enamel, Stronger Enamel, Antibacterial Mouthwash
Fights bacteria

Listerine Cool Mint Mouthwash (1000ml), Helps Kill Up to 99% of Germs Left after Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gums

Listerine Cool Mint Mouthwash (1000ml), Helps Kill Up to 99% of Germs Left after Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gums

Listerine

44% OffFree Shipping

Why we love it

Kills 99% of mouth bacteria.
Maintains gums and fresh breath.
More effective than flossing.

Main Highlights

Listerine is the 1# mouthwash brand in the UK & Ireland*. This mouthwash is designed to kill up to 99% of bacteria that cause plaque and bad breath left after brushing with plaque reduced by up to 56% more than brushing alone
Maintain healthy gums with the formula of this daily mouthwash which also helps provide long-lasting fresh breath confidence when used twice daily
The Listerine Cool Mint mouthwash is proven to be 5x more effective than floss at reducing plaque** (**Germ kill provides sustained plaque reduction above the gumline after a dental cleaning. Use alongside brushing and flossing)
How to use: Pour 20ml (4 x 5ml teaspoonfuls) of Listerine mouthwash into a glass, rinse around teeth and gums for 30 seconds, then spit out. Especially effective when used morning and evening after brushing
Product details: Listerine Cool Mint Mouthwash (1000ml), helps to kill plaque- and bad breath-causing germs to maintain healthy gums and lasting fresh breath confidence

Listerine Cool Mint Mouthwash (1000ml), Helps Kill Up to 99% of Germs Left after Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gums

44% OffFree Shipping

Why we love it

Kills 99% of mouth bacteria.
Maintains gums and fresh breath.
More effective than flossing.

Main Highlights

Listerine is the 1# mouthwash brand in the UK & Ireland*. This mouthwash is designed to kill up to 99% of bacteria that cause plaque and bad breath left after brushing with plaque reduced by up to 56% more than brushing alone
Maintain healthy gums with the formula of this daily mouthwash which also helps provide long-lasting fresh breath confidence when used twice daily
The Listerine Cool Mint mouthwash is proven to be 5x more effective than floss at reducing plaque** (**Germ kill provides sustained plaque reduction above the gumline after a dental cleaning. Use alongside brushing and flossing)
How to use: Pour 20ml (4 x 5ml teaspoonfuls) of Listerine mouthwash into a glass, rinse around teeth and gums for 30 seconds, then spit out. Especially effective when used morning and evening after brushing
Product details: Listerine Cool Mint Mouthwash (1000ml), helps to kill plaque- and bad breath-causing germs to maintain healthy gums and lasting fresh breath confidence

We scanned 528 products

We reviewed these offers relevant to the Mouthwash within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Colgate, The Breath Co., Wisdom, Listerine, Corsodyl, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Mouthwash in the market, we considered we took a deep dive into 2641 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Colgate Plax Mouthwash, Cool Mint Mouthwash with 24/7* Plaque Protection, Alcohol Free Mouthwash** with Fluoride, Vegan Mouthwash, Multipack, 4 Pack, 500ml Bottles. We love many things about this product by Colgate. What sets it apart from the competition is Provides 24/7 plaque protection. , Enjoy cool, lasting freshness. , No alcohol, burning sensation.
The best value product for most shoppers and where user satisfaction is continuously the highest is The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500 ml by The Breath Co. based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Mouthwash and the best cost-to-value ratio is Listerine Cool Mint Mouthwash (1000ml), Helps Kill Up to 99% of Germs Left after Brushing and Reduce Plaque, Mouthwash to Freshen Breath and Maintain Healthy Gumsat Listerine with a 44% discount.
Our list of the best Mouthwash is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.