Is Niacinamide toothpaste worth the Hype?

We know it's beneficial for your skin, but dentists are less certain about its effects on your teeth.

Niacinamide, a form of vitamin B3 (also known as nicotinamide), is essential for cellular function and skin health. Although we don't naturally produce niacinamide, it is present in many animal-based foods like meats, eggs, and milk, and can also be obtained through dietary supplements.

In skincare, niacinamide is a water-soluble ingredient commonly used to enhance the skin barrier, reduce the appearance of pores, regulate oil production, and lighten dark spots. It is recognized for being gentle, anti-inflammatory, and suitable for all skin types, including sensitive and acne-prone skin. Extensive research supports its numerous skin benefits, making it one of the few skincare ingredients with proven efficacy.

Niacinamide toothpaste gained significant popularity and attention as a "viral" product on platforms like TikTok around mid-2025. Although research on niacinamide for oral care existed in 2022, the specific over-the-counter whitening products became widely available online in 2024, peaking in 2025.

Generally, niacinamide is considered safe for most people when used in skincare or consumed at appropriate levels. Therefore, trying a toothpaste containing it is unlikely to cause harm.

While marketed as a whitening, breath-freshening, and enamel-supporting toothpaste, often praised for using natural ingredients to remove coffee and tea stains, many dental experts have noted a lack of substantial evidence for its whitening claims compared to traditional fluoride products.

The issue is that the mechanisms for lightening teeth and skin are entirely different.

Niacinamide helps eliminate dark spots and lighten skin by affecting melanocytes, the cells responsible for transferring melanin, the skin pigment. However, teeth yellow due to factors like consuming deeply colored foods and drinks and poor oral hygiene, which leads to plaque and bacteria buildup. Since tooth enamel lacks melanin, it's unlikely that niacinamide significantly whitens teeth.

Nevertheless, this doesn't mean niacinamide is entirely ineffective for oral care. Although research on its effects on teeth is limited, a 2022 study suggests it may slow the growth of cavity-causing bacteria. Additionally, niacinamide's anti-inflammatory properties, which help calm skin redness and irritation, could theoretically reduce gum inflammation symptoms, such as bleeding and sensitivity during flossing or brushing.

BodyAccel Niacinamide Whitening Toothpaste is often highlighted for its cherry blossom peach flavor, deep cleaning, and gentle stain removal. While users report improved gum inflammation and reduced sensitivity, scientific evidence supporting its superiority over standard toothpaste remains limited.

According to the manufacturer, BodyAccel Niacinamide Whitening Toothpaste is a fluoride-free, enamel-safe toothpaste designed to brighten teeth and remove surface stains using niacinamide (typically 2.5%) and hydrated silica.

You'll find numerous imitation products on platforms like Amazon, but I bought my tube directly from the manufacturer.

https://bodyaccel.com/products/bodyaccel-niacinamide-whitening-toothpaste-2?variant=49902326448344&country=US&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1&gad_campaignid=23003815574&gbraid=0AAAAA_jgSd3wIpMy7rNSu9r_wwJSh91a9&gclid=CjwKCAjwyYPOBhBxEiwAgpT8P_PbKfU6dsUxucIPx18UvGcFSqRqSnCJp4I4YMPz0VVbyfprR-EwFxoCFJAQAvD_BwE

The ingredient list includes: Sorbitol, Ascorbyl, Water, Lactose, Cocos Nucifera (Coconut) Oil, Hydrated Silica, Peg-400, Sodium Lauryl Sulfate, Glycerin, Flavor, Xylitol, Tetrasodium Pyrophosphate, Sucralose.

Additionally, its main ingredients are Niacinamide and Newtol, which is claimed to reduce the production of dental plaque. It also contains Silica hydrate, a common component in toothpaste (rub), which serves to whiten teeth.

I've been using this toothpaste for three weeks and have noticed a significant reduction in tooth sensitivity. I used to rely on Sensodyne daily due to my sensitivity to hot and cold. Additionally, I experienced bleeding gums, which this toothpaste seems to have resolved. However, in terms of whitening, it didn't meet the advertised claims. My teeth are one shade brighter, but if you're aiming for that bright white magazine smile, you likely won't achieve it with this product or any other over-the-counter option. You'll need to invest in a professional in-office teeth whitening procedure.

In summary, if your aim is to get a bright smile, niacinamide probably isn't the best choice.