Image of Fresh Breath Kit - Oral Probiotics for a fresh healthy breath. | Blis Probiotics

FreshBreath Kit with BLIS K12 | Probiotics for Bad Breath

FreshBreath Kit with BLIS K12™, is a scientifically developed oral probiotic designed specifically for bad breath (halitosis). It supports a fresh healthy breath, by crowding out the bad “smelly” bacteria in your mouth and repopulating it with good bacteria, so the oral microbiome becomes more balanced.

Sale price$34.99

A simple three-step routine using mouth probiotics to crowd out the bacteria that causes bad breath, leaving your breath feeling clean and fresh.​


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• The FreshBreath Kit supports fresh breath by tackling the source of the problem – not temporarily masking it. The FreshBreath Kit contains BLIS K12™ - developed from a special strain of beneficial bacteria called Streptococcus salivarius K12 (BLIS K12™) that is found to occur naturally in the mouths & throats of healthy adults and children. While everyone has these bacteria in their oral cavity, very few (2-5%) have high enough quantities of this specific strain to be effective. ​
• 95% of bad breath is caused by bacterial imbalance and most solutions for this actually drive further imbalance. Bacteria that cause bad breath commonly live on the tongue. These bacteria digest food we eat and produce smelly molecules which give us bad breath.

Founded in NZ
Pregnancy Safe
Fridge Free

Customer Reviews

Based on 24 reviews
Maria Thorburn
Excellent products

We love Blis probiotics and we would be buying them consistently!

Effective product

This product works! It does what it claims.

Jason Diack
Keeping your teeth after smoking for decades

Getting to my age the choice between keeping your natural teeth and not comes down to gum health. Years of smoking cigarettes had its impact so now using everything available to keep the gums and teeth as healthy as possible. I was concerned about the price and then realised is is way cheaper than even a single packet of cigarettes.

Freshbreath kit BLIS K12

Notice the difference the 2nd week of using this. Will continue to use BLIS K12. It’s doing it’s job 👍

excellent product

I had improved breath from the very first day , I was totally amazed by how quickly it worked , Too be honest I actually wasn't really expecting it to work so quickly or so well . Thank you for making this product ,It really does work !

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Why choose blis?

Here at BLIS we've decided to get back to basics, think of this like a BLIS 101 class, focusing on our core and pioneering products - oral probiotics, or probiotics for the mouth and throat.

Keep reading if you'd like to learn more about what oral probiotics are, how they work, and most importantly how you can benefit from them.

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Backed by science

BLIS Probiotics champions healthy mouths for all through their innovative, scientifically developed and researched probiotics for the mouth and throat.

BLIS Probiotics are leaders when it comes to applying the science of​ probiotics to the mouth and throat by adding the good bacteria in to crowd out and target the harmful bacteria.

Frequently Asked Questions

Glad you asked! BLIS is an acronym for Bacteriocin-Like Inhibitory Substances - and the core of our science and advanced probiotics.

Probiotics are good bacteria that have been characterised for their beneficial properties. They work by rapidly reproducing and crowding out any bad bacteria. You might be familiar with probiotics aimed to maintain a good balance in the gut, but your gut is not the only place that has a microbiome worth keeping in balance.

Advanced probiotics are slightly different in that they also provide the benefit of producing bacteriocins (small proteins) that are inhibitory against other bacteria species. So, not only do they crowd out the bad bacteria, they inhibit them with bacteriocins.

However, not all probiotic strains can do this. BLIS K12™ and BLIS M18™ are both advanced probiotics strains that utilise Streptococcus salivarius, which means that they have this additional capability.

Streptococcus salivarius is a species of spherical, gram-positive, facultative anaerobic bacteria that is both catalase and oxidase negative. S. salivarius colonises (usually in chains) the mouth and upper respiratory tract of humans just a few hours after birth, making further exposure to the bacteria harmless in most circumstances.

Some strains of S. salivarius are marketed as a probiotic for oral health. Some strains of S. salivarius are found to produce BLIS (the above-mentioned bacteriocin-like inhibitory substances) which are peptides that display interspecies inhibition.

BLIS K12™ and BLIS M18™ are both specific strains of Streptococcus salivarius and the core of our oral probiotics.

As noted, most probiotics are targeted towards the gut and digestive tract.

Oral probiotics, however, are those that support the mouth and throat, protecting the oral cavity (a fancy way of saying mouth, teeth, gums and throat).

BLIS K12™ probiotics populate the mouth and throat with good bacteria, crowding out the bad. In science terms – this is known as ‘bacterial interference’.

By creating a forcefield, oral probiotics can support mouth and throat health. BLIS K12™ is also used in our FreshBreath kits which restore the balance of good bacteria to the oral cavity and can aid bad breath and halitosis.

BLIS M18™ works in a similar way but it is targeted specifically at the bad bacteria that can cause teeth and gum issues.