Updated October 2026Expert Reviewed

Dentolan Review 2026Pros, Cons and Real Feedback

Rank of Supplements|Medically Reviewed by Editorial Team
Dentolan packaging

Dentolan is a 2-capsule-a-day bad breath supplement sold for $59.99 a bottle in US dollars, or CHF 49.99 on the German-language Swiss site our link lands on. It contains no zinc, chlorophyll or S. salivarius probiotic, as an earlier version of this review and our ranking card said.

Not recommended; see a dentist first
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Score Breakdown

3.5
/ 5
Ingredients
4.6
Dosage
10.0
Value
6.4
Transparency
10.0
Brand
7.0

Pros & Cons

Pros

  • Full label with doses, enzyme units and CFU
  • No caffeine or stimulants on the label

Cons

  • No bad breath trial found for any ingredient
  • Most bad breath starts in the mouth, not the gut

Who Is This For?

Recommended For:

We would not buy it. None of its ingredients has a bad breath trial behind it, most bad breath starts in the mouth, and refunds are limited to 10 days from a Dubai or Hong Kong company. See a dentist first.

Not Recommended For:

Anyone whose bad breath has not been checked by a dentist: a capsule could delay treatment for gum disease or tooth decay, which the NHS lists as causes. Also avoid it if you are allergic to any of the listed plant extracts, take glucose-lowering medicines (the NCCIH says large doses of fenugreek may cause a harmful drop in blood sugar; this capsule has 100 mg), or are pregnant, breastfeeding or under 18 (the label's own exclusion). Ask a pharmacist first if you take any medicine.

Summary

What is in it, per 2 capsules: peppermint leaf extract 300 mg, artichoke leaf extract 200 mg, a digestive enzyme complex 150 mg, Bacillus coagulans probiotic 2 billion CFU, fennel fruit extract 100 mg, fenugreek seed extract 100 mg, bromelain 50 mg and papain 50 mg.

What the evidence says:

  • A systematic review found 80 to 90% of bad breath comes from the mouth (tongue coating, gum disease, poor oral hygiene), not the gut.
  • We found no human bad breath trial for any ingredient in the capsule: PubMed returned no relevant trial for Bacillus coagulans, the enzymes, artichoke, fennel or fenugreek, and we saw no swallowed-extract trial for peppermint.
  • Cochrane found only "low- to very low-certainty evidence" for bad breath treatments, and reported no data for tablets.

There is no money-back guarantee; the terms allow 10 days from purchase.

Ingredient Breakdown

The label (a text panel on the Swiss and US sales pages and on NuviaLab's store) lists, per 2 capsules: peppermint leaf extract 300 mg, artichoke leaf extract [2.5% cynarin] 200 mg, multi-enzyme complex DigeZyme 150 mg (amylase, protease, cellulase, lactase, lipase), Bacillus coagulans MTCC 5856 at 2 billion CFU, fennel fruit extract 100 mg, fenugreek seed extract [25% saponins] 100 mg, bromelain 50 mg and papain 50 mg.

What the research shows:

  1. Where bad breath comes from. A 2023 systematic review found 80 to 90% of cases are caused by factors inside the mouth. The NHS lists gum disease, tooth problems, dry mouth, fasting or crash dieting and acid reflux as causes, and says to see a dentist if it lasts a few weeks.
  2. Probiotics. The trials used other strains. A 2022 meta-analysis of seven trials found short-term improvement with Lactobacillus and Streptococcus strains, on biased and limited data; another, of four trials, found no significant effect (p = 0.53). A 30-day trial of S. salivarius K12 in 28 people found no difference from placebo. We found no trial of Bacillus coagulans for bad breath.
  3. Enzymes, peppermint leaf, artichoke, fennel and fenugreek. We found no human trial for bad breath. The only peppermint study we saw was a mouth rinse, not a swallowed extract.
  4. Treatments overall. A Cochrane review of 44 trials found "low- to very low-certainty evidence" for the interventions tested; for tablets, "no data were reported on key outcomes".

What is not in it: no zinc, chlorophyll or S. salivarius K12, which an earlier version of this review and our ranking card listed. Our fresh breath ranking compares products, and we have reviewed Steel Bite Pro, DentiCore and Synadentix.

What Dentolan actually contains

Publishes its doses

Amounts are taken from the manufacturer’s own supplement facts panel. Where a label states a standardisation, the active fraction is what we compare, because the active is what the trials measured.

Dosage Analysis

Our Dose Check compares each label amount with the best human study we could read. For this product there is almost nothing to compare.

  • Bacillus coagulans: 2 billion CFU. No bad breath trial found; the trials we read used other strains.
  • Enzyme complex (150 mg), bromelain (50 mg), papain (50 mg): no bad breath trial found.
  • Peppermint leaf (300 mg), artichoke (200 mg), fennel (100 mg), fenugreek (100 mg): no bad breath trial found.
  • Zinc, chlorophyll and S. salivarius K12: 0. The benchmarks in our earlier review (zinc 25 mg, K12 at 1 billion CFU) did not apply to this product.

The directions say 2 capsules a day with about 300 ml of water. A bottle of 60 capsules lasts a month.

Quality & Testing

Our Transparency Score checks five things a buyer can verify. Dentolan scores 2 out of 5.

  • Label with doses: yes. Every ingredient has an amount, in milligrams, enzyme units or CFU, in the text panel.
  • Identifiable company: no. The Swiss and German terms name "Key Player Limited" at Dubai Airport Freezone and apply UAE law; the English terms name "Dentolan.com" in Hong Kong. Both exclude EU law. No manufacturer or registration number is given.
  • Refund terms in writing: yes. 10 calendar days from purchase, unused goods only.
  • Independent testing shown: no. The page shows a "Laboratory tested" badge but no report.
  • Study on the finished product: no. The page shows a "chart" of longer freshness and says "98% of surveyed customers recommend Dentolan", with no source for either.

NuviaLab, the co-seller, has 1.9 out of 5 from 148 reviews on Trustpilot; complaints concern refunds and returns.

Correction. An earlier version of this review (and our ranking card) listed zinc, chlorophyll and S. salivarius K12 (none is in it), showed an empty dose table under a "publishes its doses" heading, called it GMP-certified (no official page says so), scored it 9.2 out of 10 in the text and 3.5 out of 5 in the box, showed a 90-day guarantee and free shipping, and priced it at $57 a bottle and $1.90 a day. The real US prices are $59.99, $119.98 and $179.97, and there is no guarantee. We have corrected it.

Value for Money

Prices when we checked in September 2026:

  • Swiss site (where our link leads, in German): CHF 49.99 for 1 bottle, CHF 99.98 for 2+1 (CHF 33.33 each), CHF 149.97 for 3+3 (about CHF 25 each).
  • US site: $59.99, $119.98 ($39.99 each) and $179.97 ($29.99 each). NuviaLab's own store lists the same US prices.

That is about $2.00 a day for one bottle on the US site and $1.00 a day for six (our calculation). We could not verify shipping costs.

Refunds. The pages offer no money-back guarantee. The English terms say the customer may withdraw only "within 10 calendar days from the date of purchase of goods", that returns "must be preceded by a written statement" and that goods "can not bear traces of use". They add: "The application of EU law is not possible." NuviaLab's own store allows 14 days from receipt and excludes "any opened and used cosmetics, tablets or supplements".

Side Effects & Safety

  • Fenugreek: the NCCIH lists diarrhoea, nausea and other digestive symptoms, allergic reactions, and, in large doses, a harmful drop in blood sugar. The capsule has 100 mg.
  • Probiotic, enzymes, peppermint, artichoke, fennel, bromelain and papain: we read no safety data for these amounts in this product.
  • Label caution: "Do not exceed the recommended daily dose." It is not suitable for children, pregnant or lactating mothers.

The sales page says Dentolan causes no side effects because it was "created from natural, tested ingredients". There is no clinical study of Dentolan itself.

Final Verdict

Our Verdict

3.5/5

Dentolan publishes its doses, but none of them can be checked against a bad breath trial, because we found no trial of any ingredient in the capsule. Most bad breath starts in the mouth, not the gut, the "chart" and "98%" on the sales page have no source, the seller is a Dubai or Hong Kong entity with EU law excluded, and the terms allow 10 days to cancel. Our link lands on a German page priced in Swiss francs. We would not buy it. See a dentist first. Sources: [Memon et al. 2023, causes of halitosis](https://pubmed.ncbi.nlm.nih.gov/35212093/) · [Kumbargere Nagraj et al. 2019, Cochrane review of halitosis interventions](https://pubmed.ncbi.nlm.nih.gov/31825092/) · [Huang et al. 2022, probiotics and halitosis](https://pubmed.ncbi.nlm.nih.gov/36600415/) · [López-Valverde et al. 2022, probiotics and halitosis](https://pubmed.ncbi.nlm.nih.gov/35127785/) · [He et al. 2020, S. salivarius K12 trial](https://pubmed.ncbi.nlm.nih.gov/32227309/) · [NHS, bad breath](https://www.nhs.uk/symptoms/bad-breath/) · [NCCIH, fenugreek](https://www.nccih.nih.gov/health/fenugreek) · [NuviaLab refund policy](https://nuvialab.com/refund-policy) · [Trustpilot, NuviaLab](https://www.trustpilot.com/review/nuvialab.com) · Dentolan label and terms, checked 30 September 2026.

Best For:

Not recommended; see a dentist first

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Medical Disclaimer

The content on this page is for informational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult your physician or qualified healthcare provider before starting any new supplement regimen. Individual results may vary.