★★★★★ 5
Effective!
Noticeable difference after 2 uses! No harsh taste either!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
RXT - ZENITH III BLACK/GREY
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
RXT - ZENITH III BLACK/GREYZENITH III BLACK GREY Ultra Flow Ventilation System Large Eye port to accept large frame goggles Adjustable Peak Double D Rings Lightweight ABS Construction 3D Fully Washable Removable Liner AS NZS 1698 Standards Approved
Quick Dispatch:
Your RXT - ZENITH III BLACK/GREY orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Product Reviews
★★★★★ 3
it's not bad
a coffee, tea, and alcohol drinker so i've gone thru a few of these. i knew i wouldn't see immediate results so i just tried to consistently brush my teeth with this. i can't say it made my teeth whiter but i think it brightened my teeth and helps to prevent it from staining? i didn't irritate my teeth or gums which is important, it helped my mouth to feel cleaner or was it bc of the flavors in it that makes it feel like that? also this little container is too expensive!
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Great Product
Its a good product. It works gradually whitening teeth. I use this powder on top of the Boka Prebiotic toothpaste and I have to say I am pretty impressed how clean my teeth are, the whitening and no sensitivity issues.
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Reviewed in the United States on May 30, 2026
★★★★★ 1
Awful packaging
Just got the product so I can’t give opinion on if it works to whiten my teeth but I will say the packaging is awful. The powder gets all over the lip of the container and all over the sink. Hard pass unless you want to clean your sink each time you use it.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Best I’ve used in 40yrs
Color: A - Magic Mint (Pack of 1)
Fast shipping
Quality product
Great results
No after taste
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
