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Freshness

Concentrated Purifying Tongue Serum

Detoxified breath Anti-bad breath Targets odour-causing bacteria

A gel-textured purifying treatment with an ultra-refreshing feel, enriched with mineral zinc, spirulina and Phyllanthus (Indian gooseberry) extract. It helps eliminate the molecules and bacteria responsible for bad breath. The mouth feels purified, breath is freshened, and the tongue appears visibly cleaner.

CONCERNS ADDRESSED • Halitosis, Morning bad breath

A disrupted oral microbiome can encourage the proliferation of odour-producing bacteria, resulting in less fresh breath. This imbalance disturbs the oral ecosystem and contributes to a dry, unhealthy mouth, compromising long-lasting freshness.

KEY ACTIVE INGREDIENTS • Zinc-Biotic Complex, Phyllanthus berries

Zinc-Biotic Complex
A natural complex combining mineral zinc, prebiotics and patented purifying Solidago extract. It helps reduce the bacteria responsible for bad breath while supporting those essential to a healthy oral microbiome. Scientifically tested.

Phyllanthus (Indian gooseberry) extract
Helps eliminate odour-causing molecules known as volatile sulphur compounds (VSCs). Scientifically tested.

Spirulina
A nutrient-rich microalga, recognised for its antioxidant properties — particularly phycocyanin — which helps protect gums and oral tissues from inflammation and oxidative stress.

RESULTS • 100% morning breath neutralised

Breath is intensively purified and freshened. The tongue appears less coated, and the mouth feels clean and refreshed, even upon waking.

CERTIFICATION • 100% naturally derived ingredients · ECOCERT certified

At The Smilist, every formula is developed according to a strict formulation charter. We systematically exclude controversial ingredients to ensure oral care that is safe, effective and respectful of both enamel and the oral microbiome. 

This product is made from 100% naturally derived ingredients, contains 0% fluoride, and is ECOCERT certified. 

"A targeted serum designed to cleanse the tongue, neutralise unpleasant odours and deliver intense freshness — even first thing in the morning."

Our Holistic Dentist

Our Holistic Dentist
View full details

RESULTS

Bad breath eliminated in just 2 weeks for 100% of users:

  • 100% Purified mouth* Immediate effect
  • 100% neutralised morning breath*  Upon waking
  • 95% fresher breath* Throughout the day

*In vivo study on 20 participants (including individuals with halitosis). Product used once daily for 15 days under dental supervision.

Bad breath eliminated in just 2 weeks for 100% of users:

Reviews from our
real customers.

  • Sophie L Verified review

    Fresh breath all day

    I didn't know you could apply a serum on the tongue, but after a few days of use, I'm won over. My breath stays fresh much longer, and I feel much more confident in my daily life. I highly recommend it!

  • Marc D Verified review

    A real innovation

    This serum is a little revolution! Easy to apply, it instantly refreshes the mouth and truly eliminates bad odours. Even after a spicy meal, I feel the difference. It has become a must-have in my oral hygiene routine.

  • Nadia K Verified review

    No more breath-related insecurities

    I long searched for an effective product against bad breath, and this serum met all my expectations. In addition to refreshing, I noticed my tongue is cleaner. It's discreet, natural, and above all effective. Bravo for this innovation!

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Read more reviews
Zinc-Biotic Complex

Advanced anti-odour
technology

  • A natural complex of mineral zinc, prebiotics and patented Solidago extract, helping to reduce odour-causing bacteria while preserving microbiome balance.

  • Helps eliminate odour-causing bacteria from the surface of the tongue, leaving the mouth feeling fresh and purified.

  • Neutralises invisible odour molecules for cleaner, fresher breath.

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Healthy prebiotic care.
Created by our holistic dentist.

We formulate with naturally derived ingredients, designed
for the health of your mouth and your overall well-being.

  • Certified ORGANIC & COSMOS ORGANIC
  • Made in France
  • Vegan & Cruelty-Free
  • 100% naturally derived formula
  • Created by our holistic dentist
  • Scientifically tested in laboratory

LEARN MORE

The formula &
the routine

Discover how the active ingredients in the Concentrated Purifying Tongue Serum work, and the ideal daily routine for a fresh, detoxified mouth.
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Avis clients

Customer Reviews

Based on 15 reviews
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Dona C.
A very good discovery!

This serum is effective within just a few days of use, even on a coated tongue. I also tried the tongue scraper and the fresh mouth spray, and this brand is a really lovely discovery. The products are natural, practical and of professional quality, with a polished visual identity and varied ranges that make you want to take care of your mouth every day. I'll definitely buy from The Smilist again.

A
Alexis
Quality freshness and cleanliness care

From the very first use, you feel a real sensation of freshness and a noticeably cleaner tongue. The effect is immediate and lasts several hours, perfect for fresh breath every day. Easy to use and very pleasant, I recommend it!

M
Margaux
Very good

The serum is fresh but doesn't sting. A few drops are enough for fresh breath and a clean feeling. Combine it with the other products in the range and it's even better!

M
Mf
Good

I wasn't able to test it over a long period so I don't have enough perspective. Let's just say I'm not consistent about it. The little I did use it, though, it's pleasant, and seems to leave a neutral breath, but I don't have enough perspective yet. I'll come back to leave a review once I've finished the bottle.

E
ELODIE
Very good for a worry-free day

Very good product, it
works like a charm, very good taste and neutral breath for the whole day.
It's really great. Thank you for this product, I highly recommend it to anyone suffering from bad breath :)

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Frequently asked questions

Why apply this serum to the tongue?

The tongue is the part of the mouth that harbours the most odour-causing bacteria. It is important to know that 80% of halitosis cases are caused by bacteria present on the tongue. The serum directly targets these bacteria for fresher breath.

Does the serum contain alcohol?

No, all The Smilist formulas, including the Intense Purifying Tongue Serum, are 100% natural and contain no alcohol.

Does the serum really eliminate bad odours?

Yes, our serum has been laboratory tested. It acts directly on odour-causing molecules to eliminate them and lastingly refresh breath.

How to use the Intense Purifying Tongue Serum?

Use the serum every morning after brushing your teeth.

• Apply 3 drops directly on the tongue.

• Press your tongue against the palate for a few seconds to distribute the formula evenly.

• Do not rinse for optimal effectiveness.

CAN I USE YOUR PRODUCTS EVERY DAY?

Yes, our products are formulated for safe daily use.

HOW LONG DO RESULTS LAST?

Results vary depending on usage and oral hygiene. Regular maintenance extends the effects.

IS ORDERING ONLINE SAFE?

Yes, our deliveries are secure and discreet.

Does the serum have a particular taste?

Yes, the serum leaves a light fresh herbal taste pleasant in the mouth, without aggressive sensation, thanks to its natural formula.

Can I use this serum if I have a sensitive mouth?

Absolutely. Our formula is ultra-gentle, designed to respect the natural balance of the mouth and tongue. It is suitable for people with oral sensitivity.

How long do the serum's effects last?

Thanks to its purifying technology, the serum offers fresh breath that lasts for several hours. Daily use guarantees optimal results.

Frequently asked questions

Complete your routine

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