Synadentix is a chewable oral-health tablet whose most credible attributed core — microcrystalline hydroxyapatite (the enamel mineral) with lactoferrin and lysozyme (salivary defense proteins) — would make it the most interesting formula in our oral set, if its own ecosystem agreed: other pages attribute a calcium/D3/K2/zinc/CoQ10 roster, or a generic probiotic-herbal blend, no source publishes a single dose, and the guarantee appears as 60, 90 and 180 days (once, two of those in the same paragraph). Evidence rating: 2.0/5. Product Fit Score: 3.0/5. Hydroxyapatite's real evidence belongs to toothpaste, where contact time does the remineralizing — a format you can buy today, with the amount printed on the tube.
Synadentix
- Form
- tablet
- Price
- Guarantee
- 90-day money-back (stated by seller)
- Sold via
- maxweb
- Label amounts
- CONFLICTING label attributions across sources (hydroxyapatite/lactoferrin core vs vitamin-mineral roster vs probiotic-herbal roster); no doses published; guarantee stated as 60, 90 and 180 days — one page shows '90-Day' and '180-day' in the same paragraph; 90-day via ClickBank is the dominant claim
✓ 90-day refund window stated by seller — long enough to run an honest self-trial
Check current price on the seller's site
Affiliate link. Prices and guarantee as shown on the seller's page on 3 September 2026; they may have changed. Not independently verified beyond that page.
Evidence & product fit
| Product Fit factor | Score (out of 5) | Why |
|---|---|---|
| Formula completeness | 1.5 | Conflicting formula attributions, no doses anywhere (a 60-day tester review flags "missing dosage info" explicitly), and guarantee claims of 60, 90 and 180 days — one page contradicting itself within a single paragraph. |
| Ease of use | 4.5 | The tablet format is generally straightforward, but clear serving directions were not available in the product facts we verified. |
| Guarantee & buying terms | 3.5 | 90 days via ClickBank is the dominant, mechanics-described claim — scored as such; screenshot yours. |
| Price / value | 1.5 | Unjudgeable without doses; sympathetic testers also flag the price. |
| Category relevance | 4.0 | The named formula is broadly aligned with oral health positioning. Category relevance measures fit to the intended use; it does not mean the finished product has been clinically proven effective. |
Might suit you if…
- Someone drawn to the hydroxyapatite idea who accepts a formula lottery and will use the 90-day ClickBank window as a hard decision boundary
Skip it if…
- Anyone who wants the hydroxyapatite evidence as studied — that's a toothpaste (typically ~10% nano- or micro-hydroxyapatite), brushed on with two minutes of contact, at a fraction of the price
- Anyone comparing labels — three incompatible rosters means there's no label to compare
- Anyone with active decay, sensitivity or bleeding gums — dentist first; remineralization support is for early, professionally watched lesions
The Evidence Rating reflects research on the finished product and/or named ingredients for the intended use. The Product Fit Score is a separate practical assessment of formula completeness, ease of use, guarantee/buying terms, price/value and category relevance. Neither score is a customer rating, and affiliate relationships do not determine either score. See the full scoring method.
What Synadentix is
Synadentix is a daily chewable sold for gums, enamel and breath through the now-familiar cluster of "official" pages, with a 90-day ClickBank guarantee as its steadiest fact and a formula its own marketing tells three ways: a hydroxyapatite–lactoferrin–lysozyme core (the version serious enough that an independent tester praised the ingredient thinking while flagging the missing doses), a vitamin-mineral roster (calcium, D3, K2, zinc, CoQ10), and a generic probiotic-herb blend. No amounts, anywhere, for any version.
The interesting version, graded honestly
If the hydroxyapatite attribution is true, Synadentix contains the one compound in our whole oral set with head-to-head remineralization trials — as toothpaste, where ~10% concentrations and brushing contact do the depositing. A chewable's seconds of contact is a fraction of that mechanism; a swallowed dose is none of it. Lactoferrin and lysozyme are real components of salivary defense with thin oral-supplement files. That's a 2.9-class formula if disclosed and dosed — and a formula-lottery ticket as sold, which is why the score lands with Biodentix rather than ProDentim.
Verdict
2.1/5 — the ecosystem problem eats the ingredient credit. The reader who liked the science this product gestures at can buy it as studied today: hydroxyapatite toothpaste with a printed concentration, used per the decay page's remineralization basics, alongside the dentistry that watches early lesions. We'll re-grade if a supplement-facts panel ever settles which Synadentix exists.
Frequently asked questions
Is hydroxyapatite legitimate for teeth?
Yes — it's 97% of enamel's mineral, and hydroxyapatite toothpastes have real trials showing remineralization of early lesions roughly comparable to fluoride in several studies. The operative words are toothpaste and contact: the mineral deposits during minutes of brushing contact, repeatedly. A chewed tablet gets brief contact — partial mechanism at best — and Synadentix's amount is unpublished anyway.
What's actually in Synadentix?
Depends which page you believe: hydroxyapatite + lactoferrin + lysozyme (the most detailed attribution), a calcium/D3/K2/zinc/CoQ10 vitamin stack (a different product class entirely), or "probiotics, herbal extracts and minerals." No doses appear anywhere — a point even a favorable 60-day tester review concedes. Incompatible rosters mean the purchasable product can't be evidence-graded.
Which guarantee applies?
The dominant, mechanics-described claim is 90 days with refunds processed through ClickBank — genuinely a strong window if it's yours. But we also found a 60-day version and a page advertising "90-Day Money-Back Guarantee" and a "180-day refund policy" in the same breath. Screenshot the terms at your checkout; that version is the one that arguably binds.
How should oral-health claims be checked against format?
Match the promise to the delivery route before reading another word. Gum, enamel and breath claims need mouth-contact formats (paste, lozenge, rinse, chewable) because that's what every positive oral trial used; swallowed capsules serve the gut. Then match doses — xylitol's cavity data starts around 6 grams daily, oral-probiotic trials name strains and CFU. A product failing both checks — capsule format, unstated amounts — has exited the evidence conversation regardless of its ingredient names, which is the recurring verdict across this aisle and the reason the $3 fluoride tube keeps winning our comparisons.
A real enamel mineral without a dose — how close is that to useful?
Tantalizingly close, which is what makes it frustrating. Hydroxyapatite is one of the few oral ingredients with genuine comparative trials — at around 10% concentration in toothpaste it remineralizes early lesions competitively with fluoride in several studies. But that evidence is concentration-specific and format-specific (paste in contact with enamel), so a capsule or an unstated percentage inherits none of it. The honest purchase this label gestures toward exists on any pharmacy shelf: a 10% hydroxyapatite or standard fluoride paste, concentration printed, for under $10 — the rare case where the evidence-based version of a funnel product is cheaper and better in every dimension.
Synadentix · 90-day seller refund window
Check current price on the seller's site Compare oral health supplements
Affiliate links. Our evaluation is unaffected — the criterion scores above explain the verdict either way.
References
- National Institute of Dental and Craniofacial Research. Periodontal (Gum) Disease (2024). https://www.nidcr.nih.gov/health-info/gum-disease
- U.S. Food and Drug Administration. Dietary Supplements (2024). https://www.fda.gov/food/dietary-supplements
- Federal Trade Commission. FTC Endorsement Guides (2023). https://www.ftc.gov/business-guidance/resources/ftcs-endorsement-guides-what-people-are-asking
Supplements do not replace brushing with fluoride toothpaste, flossing, dental cleanings or treatment for tooth decay and gum disease. Persistent bleeding, swelling, severe tooth pain, facial swelling or a mouth sore that does not heal needs dental or medical assessment.