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Frequently Asked Questions
Everything you need to know about AEXZR® SP-8.
How long does it take to see whitening results?
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Most customers notice a visibly brighter smile within 2 to 3 weeks of consistent use. For stubborn coffee, tea, or tobacco stains, it may take a full month. Our gentle formula prioritizes your enamel's health over harsh bleaching.
Is it safe for sensitive teeth and enamel?
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Absolutely. Unlike chemical whitening strips that can strip your enamel and cause painful sensitivity, AEXZR® SP-8 uses a gentle, probiotic-based formula. It safely lifts surface stains while actually helping to fortify your teeth.
What does "Probiotic" mean for toothpaste?
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Just like probiotics help your gut, oral probiotics help balance the microbiome in your mouth. This helps prevent plaque buildup, soothes irritated gums, and naturally neutralizes the bad bacteria that cause morning breath.
What is the flavor profile?
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It features a refreshing, mild natural mint flavor. We formulated it to avoid the harsh chemical burn or artificial sweetener aftertaste that is common in many drugstore whitening pastes.
Can I replace my regular daily toothpaste with this?
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Yes! AEXZR® SP-8 is specifically formulated for comprehensive daily care. Simply replace your old toothpaste and brush twice a day for optimal oral health and a bright smile.
When will my order ship?
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We process all orders within 24-48 hours. Standard US delivery typically takes 3-7 business days. A tracking link will be provided via email once your order leaves our warehouse.
12,000+ Customer Reviews
Feedback themes: whitening results, enamel protection, flavor, gum health, and realistic expectations.
Customer photos & before/afters
Actually works on coffee stains
I drink way too much iced coffee and my teeth were getting super yellow. Saw this on TikTok and gave it a shot. Ngl, it actually lifted a lot of the stains after a couple of weeks.
Good for sensitive gums
My hygienist told me to look into probiotics. This one doesn't foam as much as Crest, but my gums stopped bleeding when I floss so I'll take it. Whitening is a nice bonus.
Finally no zingers!
Whitening strips always give me those painful 'zingers' in my teeth. This paste doesn't hurt at all. Tastes a bit herbal but leaves my teeth feeling super smooth like I just left the dentist.
Box was crushed, product is fine
USPS literally mangled the box lol. Tube was intact though. Been using it for a week, teeth definitely feel cleaner. Too early to tell on the whitening part yet.
Morning breath is gone
Bought this for my husband (iykyk). It actually works. His breath is way better in the morning. Will probably buy the 3-pack next time to save on shipping.
Different texture but I like it
The texture is slightly different from normal Colgate, kinda thicker? But the mint flavor is super mild and doesn't burn your tongue. Actually really like it.
Be patient with it
Don't expect those fake Hollywood white teeth in a day. It took almost a month of brushing 2x a day to see real progress on my tea stains. Good product, just takes time.
Teeth feel squeaky clean
You know that squeaky clean feeling after a professional dental cleaning? This gives me that every morning. The redness around my gumline is pretty much gone too.
Skeptical at first, but it actually works
Honestly, I was super skeptical. I've tried every drugstore brand (Crest, Colgate Optical White, etc.) and they never did much for my tea habit. This SP-8 stuff actually lifted the yellowing on my bottom teeth. Doesn't taste like harsh chemicals either.
Pro tip: Brush dry first!
Pro tip: don't wet your toothbrush too much. Works way better if the paste isn't super diluted with water. Deducted one star because shipping took forever (like 6 days), but the product itself is solid.
A must-have for wine drinkers
I love my red wine but hate the purple teeth look. I use this right before bed and it completely gets rid of the wine stains. Also, no sensitivity at all which is a huge plus for me. My mouth feels so fresh waking up.
No weird chemical aftertaste!
I hate when whitening toothpastes taste like straight peroxide. This one just has a very mild, natural minty flavor. Doesn't burn the inside of my cheeks or leave a weird film. 10/10.
Took a couple weeks, but did the job
Took almost 3 weeks to see a noticeable difference, so don't expect overnight miracles. My coworkers did ask if I got my teeth whitened though, so it definitely works. Just gotta be consistent with brushing twice a day.
Hygienist noticed a difference
My dentist warned me about my gums receding and suggested balancing my oral bacteria. Started using this. Went back for my 6-month cleaning and my hygienist said my gums looked way healthier. Already ordered my second tube.





