We Chose The Best Listerine Mouthwash 1l Original in The UK - 10/2025

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

8.7

Excellent

8.7

Excellent

Listerine

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

We scanned 1164 products

We reviewed these offers relevant to the Listerine Mouthwash 1l Original 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 Listerine, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Listerine Mouthwash 1l Original in the market, we considered we took a deep dive into 5821 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 Listerine Antiseptic Adult Mouthwash - Original, 250 ML (Pack of 12). We love many things about this product by Listerine.

The best value product for most shoppers and where user satisfaction is continuously the highest is Listerine Antiseptic Mouthwash - 250 Ml by Listerine based on online reviews by bloggers, experts and online shoppers.

The biggest bargain at the moment for Listerine Mouthwash 1l Original and the best cost-to-value ratio is Listerine Essentials Cool Mint Mouthwash 1L (Pack of 3)at Listerine with a 44% discount.

Our list of the best Listerine Mouthwash 1l Original 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.

Best Listerine Mouthwash 1l Original of 2025

We scanned 1164 products

We concluded that: