Short answer: the best denture cleaner for you depends on what you're optimising for: lowest cost per clean, no persulfate exposure, ultrasonic compatibility, or just not having to remember to buy more tablets. UK review roundups (Testix tested six tablet brands against over 1,700 customer reviews) judge on odour control, plaque and stain removal, and material safety, and tablets and liquid solutions trade off differently on all three once you look past who's ranked #1.
Most roundups only compare tablets against tablets
Open a few different "best denture cleaner" roundups and a pattern shows up: most are comparing tablet brands against each other. That's not unreasonable. Supermarket shelves are mostly tablets, so a roundup testing what's on the shelf naturally ends up testing tablets. It just means those roundups answer "which tablet" rather than "which format", so a liquid option rarely gets a fair look-in.
One UK-specific review, Testix, tested six tablet brands against over 1,700 customer reviews and picked Polident Overnight (84-pack) as its top performer, with Efferdent's 102-count as the value runner-up. Useful information, but it's a tablets-only comparison.
What these reviews are actually scoring
Strip away the branding and most denture cleaner reviews are judging three things:
- Odour and stain control. Does it actually shift tea, coffee and tartar build up, or just mask the smell for a few hours.
- Material safety. Does it stay gentle on acrylic and metal clasps over repeated use, or slowly dull and weaken the surface.
- Ease of use. How much faff is involved, realistically, every single day, for the rest of the time you wear dentures.
Tablets score well on the first one short-term, mixed on the second (several brands carry persulfate, a documented allergen, on their own labels), and lower on the third if you count unwrapping a sachet every day as faff, which, after a few hundred times, most people do.
Where a liquid cleaner actually sits on those same criteria
Blakmint's liquid cleaner was tested under ASTM E2315, the lab standard for measuring bacterial reduction on an appliance surface, against a mixed inoculum of four real bacteria strains: Pseudomonas aeruginosa, E coli, Staphylococcus aureus and E hirae. At a 20-minute soak, the result was a 99.99% reduction for the sample tested, the same number printed on the bottle. It's persulfate free, reused across 6-day batches rather than binned daily, and a 250ml bottle at £14 runs up to 5 months.
Across the bundle listings that include it, customers have left over 300 combined reviews at a 5-star average. One verified Amazon buyer put it plainer than any lab report: "The liquid solution is so much better than the standard cleaning one I was given initially that tasted of chlorine."
So which should you actually buy?
If you want the single highest-rated tablet, specifically, Testix's UK testing points to Polident Overnight. If you're optimising for cost over a year, no persulfate exposure, ultrasonic compatibility, and not running out mid-week, a reusable liquid solution wins on those specific measures, which a tablets-only roundup was never set up to tell you.
Frequently asked
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Is a more expensive denture cleaner always better?
Not necessarily. Testix's own value pick (Efferdent) scored close behind its top pick at a lower price. Price and performance don't track perfectly in either format. -
Do liquid cleaners work as well as tablets?
On the core job, plaque and stain removal, both formats work when used as directed. The real differences are cost over time, allergen exposure, and daily convenience, not cleaning power. -
Should I pick based on reviews alone?
Reviews are useful for comparing within a format, but most "best of" lists only test tablets. Factor in cost-per-month and ingredients yourself if a liquid option is on your shortlist. -
Is it safe to switch from tablets to liquid partway through?
Yes. There's no adjustment period or compatibility issue; just follow the new product's dilution and soak instructions from the first use.
The Blakmint liquid retainer & denture cleaner is £14 for up to 5 months of use, persulfate free, ultrasonic-safe, and recommended by orthodontists we work with.
Comparing it specifically to tablets? Read Denture Cleaning Tablets vs Liquid, or for the daily routine, How to Clean Dentures Properly.