M3 Naturals Retainer Cleaner Tablets, Mint, 120 Count

An easy daily soak for retainers and night guards, unless persulfate is a concern.

The short version

Buy it if
  • Daily retainer, aligner or night guard wearers who want a soak and rinse routine
  • Denture wearers who prefer a mint scented cleanser
Skip it if
  • You are sensitive or allergic to persulfates
  • You have no warm water handy where you clean your appliance

What owners like

  • Appliances come out noticeably cleaner after a standard soak, including hard to reach spots
  • Pleasant mint smell compared with plain cleansers
  • Individually wrapped tablets are easy to carry and store

Common complaints

  • Needs warm water each time
  • Heavily stained appliances need around 30 minutes or an overnight soak
  • Will not restore a badly neglected appliance

Based on A hands on review from a dental practice blog, the Vitacost and Amazon product listings. No forum threads specific to this product were found..

Research scores

Does the job 7.6 a review found appliances noticeably cleaner, though heavy stains need longer soaks
Quality 7.0 clear ingredient list and warnings, but it contains persulfate, a known allergen
Ease of use 8.0 one wrapped tablet in warm water for 15 minutes
Value 7.4 120 tablets in a mid price band

Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.

Ownership

Owned sinceDec 2025
Owned for10 months
Times bought1
Price range$$
  1. Dec 2025

    First bought.

Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.

What it does

Mint scented effervescent soaking tablets for cleaning retainers, aligners, dentures and night guards, sold as a 4 month supply of 120 tablets.

  • Fizzing oxygen based soak aimed at odor, stains and buildup
  • Listed as usable with retainer cleaner machines and ultrasonic cleaners
  • Single tablet per soak, no brushing step required by the directions
  • Other M3 versions include a coffee and tea formula and an overnight whitening formula

A simple daily soak for anyone who wears a retainer, aligners or a night guard and wants to cut odor and buildup without scrubbing. Heavy stains need a longer soak, and the formula contains persulfate, a known allergen, so anyone sensitive to it should look elsewhere.

How it compares

Efferdent Retainer Cleansing TabletsBetter if you want a widely stocked drugstore option$
Retainer Brite Cleaning TabletsBetter if your orthodontist already recommends it or you want a brand sold through dental offices$$
Invisalign Cleaning CrystalsBetter if you want the cleaner made by the aligner maker for Invisalign trays$$$

Specs

Count
120 tablets, sold as a 4 month supply
Scent
Mint, with peppermint oil
Directions
One tablet in 1 cup of warm water, soak 15 minutes; stubborn stains can soak overnight
Works with
Aligners, retainers, dentures and night guards
Key ingredients
Sodium bicarbonate, potassium peroxymonosulfate, sodium percarbonate, citric acid
Packaging
Individually wrapped tablets

Worth knowing

  • Contains persulfate, a known allergen.
  • Do not use to clean natural teeth, and do not put tablets or solution in the mouth or drink the solution.
  • Avoid contact with eyes and skin, and rinse the appliance well before wearing it.
  • Keep out of reach of children; if swallowed, seek medical attention and bring the package.

Questions

How long do you soak a retainer in M3 tablets?

The listing says 15 minutes in a cup of warm water, with stubborn stains soaking overnight.

Can M3 tablets be used for Invisalign aligners?

Yes. The maker lists aligners along with retainers, dentures and night guards.

Do M3 retainer cleaner tablets contain persulfate?

Yes. The ingredient list includes potassium peroxymonosulfate, and the label carries a persulfate allergy warning.

How many tablets are in the 4 month supply?

120 tablets.

Sources

Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.

7.5M3 Naturals Retainer Cleaner Tablets, Mint, 120 Count Check price