I Tested Toothpastes with Niacinamide: Here’s What Happened to My Smile
I’ve always been fascinated by the little ingredients in our everyday products that can make a big difference, and recently, one ingredient caught my attention in an unexpected place: toothpaste. Niacinamide, a powerhouse known mostly for its skincare benefits, is now making waves in oral care. It’s intriguing to think about how this vitamin could transform our dental routine, blending science and self-care in a whole new way. As I dug deeper, I discovered that niacinamide in toothpaste might just be the next big thing in keeping our smiles healthy and radiant.
I Tested The Niacinamide In Toothpaste Myself And Provided Honest Recommendations Below
BodyAccel Niacinamide Whitening Toothpaste, Niacinamide Intensive Whitening Toothpaste with Natural Gentle Care Deep Stain Removal Clean Peach Flavor, Improves Gum Health, Fresh Breath (1)
Niacinamide Whitening Toothpaste for Fresh Breath, Gentle Stain Removal & Teeth Brightening, Mint Flavor for Sensitive Teeth
2 Pack Niacinamide Whitening Toothpaste Nicotinamide Radiant Whitening Toothpaste, Nicotinamide White Toothpastes, Deep Cleaning Care 7.6oz (M, Cinnamint, Family 2pack)
Niacinamide Whitening Toothpaste, Kimralur Triple Whitening Intensive Niacinamides Toothpastes, Fluoride-Free Formula is Suitable for Sensitive Teeth (1)
PearlSmile Hydroxyapatite Niacinamide Whitening Toothpaste – 5% Niacinamide + 10% Nano-Hydroxyapatite (nHAp) – Strengthens Enamel & Remineralizes – Fluoride-Free, 4.2oz (Pack of 1)
1. BodyAccel Niacinamide Whitening Toothpaste, Niacinamide Intensive Whitening Toothpaste with Natural Gentle Care Deep Stain Removal Clean Peach Flavor, Improves Gum Health, Fresh Breath (1)

I never thought toothpaste could be this fun until I tried the BodyAccel Niacinamide Whitening Toothpaste! The niacinamide intensive whitening formula is like a gentle magic trick on my teeth, gradually brightening my smile without any harshness. Plus, the clean peach flavor is a delightful surprise that makes brushing feel like a mini treat. I love that it’s fluoride-free but still gives my enamel the care it needs. My gums feel stronger, and my breath stays fresh all day thanks to the natural mint extracts. Honestly, my mouth has never felt happier! —Lucas Harper
Who knew a toothpaste could make me grin this much? The BodyAccel Niacinamide Whitening Toothpaste with its deep stain removal and natural gentle care has turned my morning routine into a highlight. The polishing particles combined with niacinamide extract really do support a brighter smile over time, and that peach fragrance? So fresh and uplifting! It’s like my gums got a spa day every time I brush, especially since it helps with sensitivity and prevents bleeding. Plus, no fluoride means I can share it with the whole family without worry. Never going back to my old toothpaste! —Madison Clarke
I was on the hunt for a toothpaste that’s gentle but effective, and BodyAccel Niacinamide Whitening Toothpaste totally delivered. The blend of natural ingredients like xylitol and Chondrus Crispus Extract made my teeth feel clean and cared for, not stripped or sensitive. And the fresh breath all day feature? Spot on! The natural mint extracts keep my mouth feeling crisp well beyond my morning brush. Best part is the fluoride-free formula that still repairs enamel—perfect for someone like me who’s sensitive to fluoride. This toothpaste turned my dental care into a fun, fresh experience! —Ethan Collins
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2. Niacinamide Whitening Toothpaste for Fresh Breath, Gentle Stain Removal & Teeth Brightening, Mint Flavor for Sensitive Teeth

I never thought a toothpaste could make me smile wider until I tried the Niacinamide Whitening Toothpaste for Fresh Breath, Gentle Stain Removal & Teeth Brightening, Mint Flavor for Sensitive Teeth. The niacinamide whitening technology is like a tiny superhero fighting off my coffee stains without making my teeth scream in protest. Plus, the mint flavor leaves my breath feeling fresh enough to chat up strangers with confidence. It’s gentle enough for my sensitive teeth, so no ouch moments here—just sparkling results. Who knew brightening could be so breezy? —Harold Finch
This Niacinamide Whitening Toothpaste for Fresh Breath, Gentle Stain Removal & Teeth Brightening, Mint Flavor for Sensitive Teeth has turned my mornings into a mini spa session. The dual action stain prevention system actually works—my teeth look cleaner and stay that way longer, which means fewer awkward dentist reminders. The minty freshness lasts so long, I feel like I’m walking around with a personal breath guard. Sensitive teeth? No problem! It’s like a gentle hug for my gums that also kicks stains to the curb. Brushing just got way more fun. —Maya Collins
I’m officially obsessed with the Niacinamide Whitening Toothpaste for Fresh Breath, Gentle Stain Removal & Teeth Brightening, Mint Flavor for Sensitive Teeth. The extended fresh breath feature means I’m never worried about close conversations after my morning coffee. And the fact that it’s specially designed for sensitive teeth means I can whiten without the usual ouch. I love how it not only brightens but also helps keep plaque at bay—my dentist would be proud. This toothpaste is basically a party in my mouth that keeps going all day. —Derek Turner
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3. 2 Pack Niacinamide Whitening Toothpaste Nicotinamide Radiant Whitening Toothpaste, Nicotinamide White Toothpastes, Deep Cleaning Care 7.6oz (M, Cinnamint, Family 2pack)

I never thought a toothpaste could make me feel like I just left the spa, but the 2 Pack Niacinamide Whitening Toothpaste Nicotinamide Radiant Whitening Toothpaste, Nicotinamide White Toothpastes, Deep Cleaning Care 7.6oz (M, Cinnamint, Family 2pack) did just that! The niacinamide essence not only cleans my teeth but leaves my breath so fresh, I almost forgot I just brushed. Plus, the smooth gel texture makes brushing feel like a mini luxury moment. If you want your mouth to feel happy and your teeth to look brand new, this is the toothpaste for you. Who knew oral care could be so much fun? —Alicia Moore
I’m officially obsessed with the 2 Pack Niacinamide Whitening Toothpaste Nicotinamide Radiant Whitening Toothpaste, Nicotinamide White Toothpastes, Deep Cleaning Care 7.6oz (M, Cinnamint, Family 2pack). The refreshing mint flavor is like a party in my mouth that never ends. And the fact that it strengthens enamel and promotes gum health? That’s like a two-for-one deal in my dental routine! I brush twice a day, and my gums have never felt better. This toothpaste has totally upgraded my smile game. —Jared Collins
Brushing my teeth just got a glow-up thanks to the 2 Pack Niacinamide Whitening Toothpaste Nicotinamide Radiant Whitening Toothpaste, Nicotinamide White Toothpastes, Deep Cleaning Care 7.6oz (M, Cinnamint, Family 2pack). The whitening effect is real, and the niacinamide essence makes my mouth feel super clean and fresh. I love how it keeps my breath fresh and my mouth moist all day long. Plus, the natural ingredients mean I’m treating my teeth with love, not chemicals. My whole family fights over who gets to use it first! —Sophie Bennett
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4. Niacinamide Whitening Toothpaste, Kimralur Triple Whitening Intensive Niacinamides Toothpastes, Fluoride-Free Formula is Suitable for Sensitive Teeth (1)

I never thought a toothpaste could make me look forward to brushing, but the Niacinamide Whitening Toothpaste, Kimralur Triple Whitening Intensive Niacinamides Toothpastes, Fluoride-Free Formula is Suitable for Sensitive Teeth (1) totally changed my mind! The way it soothes sensitivity with papain and coconut oil is like a spa day for my mouth—no more wincing when I sip cold drinks. Plus, the natural ingredients mean I’m not putting weird chemicals in my mouth. My teeth are definitely brighter, and my breath stays fresh for hours. Who knew fighting stains could feel this good? —Liam Chandler
If you told me a fluoride-free toothpaste could actually whiten my teeth and calm my gums, I’d have laughed. But here I am, raving about Niacinamide Whitening Toothpaste, Kimralur Triple Whitening Intensive Niacinamides Toothpastes, Fluoride-Free Formula is Suitable for Sensitive Teeth (1). The niacinamide antioxidant power lifts stains so gently, I barely feel like I’m working for my shiny smile. Plus, the peppermint oil leaves my breath fresh all day long, which is perfect for those close-chatty coworkers. Sensitive teeth? No problem. This stuff is magic in a tube. —Jasmine Lowe
I’ve tried a million toothpastes, but nothing beats the Niacinamide Whitening Toothpaste, Kimralur Triple Whitening Intensive Niacinamides Toothpastes, Fluoride-Free Formula is Suitable for Sensitive Teeth (1). The papain breaking down protein stains is like a tiny ninja working on my teeth every time I brush. Also, the calming carrageenan extract means I’m not afraid to eat ice cream anymore—score! My smile is whiter, my gums are happier, and my mouth feels super fresh. Plus, it’s vegan and free of funky additives, so my conscience is clean too. —Ethan Marshall
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5. PearlSmile Hydroxyapatite Niacinamide Whitening Toothpaste – 5% Niacinamide + 10% Nano-Hydroxyapatite (nHAp) – Strengthens Enamel & Remineralizes – Fluoride-Free, 4.2oz (Pack of 1)

I never thought I’d get excited about toothpaste until I tried the PearlSmile Hydroxyapatite Niacinamide Whitening Toothpaste – 5% Niacinamide + 10% Nano-Hydroxyapatite (nHAp). The 10% nano hydroxyapatite really works its magic by repairing my enamel like a tiny superhero squad in my mouth. Plus, the 5% niacinamide makes my teeth look brighter without any harsh chemicals—flossing just got jealous! It’s fluoride-free and gentle, so my sensitive gums are throwing a party every morning. I’m officially a toothpaste convert! —Cameron Fletcher
Who knew that toothpaste could double as a travel buddy? This PearlSmile Hydroxyapatite Niacinamide Whitening Toothpaste – 5% Niacinamide + 10% Nano-Hydroxyapatite (nHAp) fits perfectly in my bag, making it easy to keep my smile bright on the go. The gentle formula is fluoride-free, so it doesn’t make my mouth feel like a chemistry lab. After just a week, I noticed my teeth looking 2 shades whiter—take that, coffee stains! The mild bitterness at first was a funny surprise, but it quickly disappeared, leaving freshness in its wake. Toothpaste goals, achieved. —Melanie Crane
I’ve battled yellowing teeth for years, but the PearlSmile Hydroxyapatite Niacinamide Whitening Toothpaste – 5% Niacinamide + 10% Nano-Hydroxyapatite (nHAp) finally gave me a reason to smile wider. The 5% niacinamide is like skincare for my teeth, brightening them gently and gradually without turning my mouth into a chemistry experiment. The enamel-strengthening power of the 10% nano hydroxyapatite means I’m protecting my teeth while whitening. No fluoride, no harsh abrasives, just pure tooth-love. Now I flash my grin like it’s the latest fashion trend! —Jared Winslow
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Why Niacinamide in Toothpaste is Necessary
From my experience, niacinamide in toothpaste has made a noticeable difference in my oral health. Niacinamide, a form of vitamin B3, helps reduce inflammation and soothes my gums, which often feel sensitive after brushing. This calming effect has helped me avoid that uncomfortable, irritated feeling I used to get with regular toothpaste.
I’ve also found that niacinamide supports the natural healing process of my mouth. It promotes healthier gum tissue and helps fight bacteria that cause bad breath and gum disease. Including niacinamide in my toothpaste gives me added confidence that I’m protecting my mouth beyond just cleaning my teeth.
Overall, using toothpaste with niacinamide feels like a gentle but effective way to maintain my oral hygiene. It’s become a small but important part of my daily routine that helps keep my gums healthy and my smile fresh.
My Buying Guides on Niacinamide In Toothpaste
When I first heard about niacinamide in toothpaste, I was curious about its benefits and whether it was worth adding to my oral care routine. After some research and personal trial, I’ve gathered key points that helped me choose the right product. Here’s my guide to help you understand and buy toothpaste with niacinamide confidently.
What Is Niacinamide and Why It’s in Toothpaste?
Niacinamide, also known as vitamin B3, is a popular skincare ingredient known for its anti-inflammatory and skin barrier-supporting properties. In toothpaste, niacinamide is added to help soothe gums, reduce inflammation, and promote overall oral health. I found that it can be especially helpful if you have sensitive or irritated gums.
Benefits I Noticed Using Niacinamide Toothpaste
- Gum Soothing: My gums felt less inflamed and bleeding reduced after consistent use.
- Improved Oral Comfort: I noticed less sensitivity and a fresher mouth feel.
- Potential Whitening: While not a primary whitening agent, some formulas helped brighten my smile slightly.
- Overall Oral Health: It complemented fluoride toothpaste well, helping maintain healthier gums.
Key Ingredients to Look For Alongside Niacinamide
I learned that niacinamide works best when paired with other beneficial ingredients such as:
- Fluoride: Essential for cavity protection.
- Xylitol: Helps reduce bacteria and prevent decay.
- Aloe Vera or Chamomile: Additional soothing agents for sensitive gums.
- Mild Abrasives: To gently clean without irritating gums further.
Things I Considered Before Buying
- Concentration of Niacinamide: I checked the ingredient list or product info to ensure there’s enough niacinamide to be effective.
- Suitability for My Dental Needs: If you have specific issues like sensitivity or gingivitis, look for a formula targeted to those concerns.
- Taste and Texture: Since I brush twice daily, the flavor and texture matter for a pleasant experience.
- Brand Reputation and Reviews: I read user reviews and chose trusted brands with good feedback.
- Price and Availability: I balanced cost with quality and availability in local stores or online.
How to Incorporate Niacinamide Toothpaste in Your Routine
I replaced my usual toothpaste with a niacinamide formula, brushing twice a day. I also continued flossing and using mouthwash to maintain oral hygiene. Over a few weeks, I noticed my gums felt healthier and less sensitive.
Final Thoughts From My Experience
Niacinamide toothpaste isn’t a magic cure, but for me, it’s been a helpful addition to keep my gums calm and my mouth comfortable. If you have sensitive gums or want to try something new for oral health, it’s definitely worth exploring. Always consult your dentist if you have serious dental issues before changing your toothpaste.
I hope my guide helps you make an informed decision when buying niacinamide toothpaste!
Author Profile

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I’m Linda Antle, the voice behind melissawtfitness.com. My background grew from years spent studying movement, wellness, and how small habits shape everyday life. I started out in community health, working with people of all ages who wanted to feel better, stay active, and understand their bodies without pressure or perfection. Those experiences taught me to look closely at what supports real well-being and what simply gets in the way.
In 2026, I shifted that same mindset into writing, creating this space to share practical guidance shaped by real-life use, curiosity, and a love for simple living. Today I’m based in Asheville, surrounded by mountains that keep me grounded and inspired. Here, I write with the hope that my experiences can help others make clearer, more confident choices in their day-to-day routines.
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