The #1 Toothpaste to Avoid: Protect Your Smile from Hidden Dangers
- Bruce Salinger

- Aug 26
- 5 min read
When it comes to brushing our teeth, we all want to make sure we’re keeping our smiles clean and healthy. But did you know that some popular toothpastes contain ingredients that could actually be harming your mouth in the long run? One of the worst offenders is toothpaste with sodium lauryl sulfate (SLS), a common ingredient used to create that foamy, bubbly texture. Let me share with you why you should avoid toothpastes with SLS and what brands to watch out for.
Why the Right Toothpaste Matters
We all know that brushing our teeth is crucial to keeping cavities at bay, freshening our breath, and protecting our gums. But what if the toothpaste you’re using to clean your teeth is actually doing more harm than good? That's where choosing the right one makes all the difference. The toothpaste I recommend you avoid is the kind that contains sodium lauryl sulfate—and I’m going to explain exactly why.
What is Sodium Lauryl Sulfate (SLS)?
Sodium lauryl sulfate is a detergent and surfactant. In simple terms, it’s what makes your toothpaste foam up and spread around your teeth. It’s also found in many soaps, shampoos, and cleaning products. While it’s effective at cleaning, it can cause some serious problems in your mouth.
I’ve used many toothpaste brands over the years, and I didn’t realize that SLS was the cause of irritation in my mouth. I’ll tell you more about my experience, but first, let’s take a look at why you should avoid toothpastes with this ingredient.
Why You Should Avoid Toothpaste with SLS
Mouth Irritation: SLS can dry out your mouth and cause irritation to the gums. You might notice a sore or burning feeling after brushing, or your mouth might feel uncomfortably dry. For people with sensitive mouths, this can be especially bothersome.
Increased Canker Sores: If you’re prone to canker sores, SLS can make them worse. Research shows that this ingredient can trigger or aggravate these painful mouth sores, which is definitely something you want to avoid.
Dry Mouth: If your mouth feels parched after brushing, it's a sign that the toothpaste might be stripping away your mouth’s natural moisture. This can lead to bad breath and a greater risk of tooth decay.
Sensitive Teeth: SLS can also make sensitive teeth feel even more sensitive. If you experience discomfort when eating hot or cold foods, SLS could be contributing to the problem.
Possible Allergic Reactions: While rare, some people have allergic reactions to SLS. Symptoms can include swelling or irritation of the lips, gums, and tongue.
Toothpaste Brands with SLS to Avoid
Now that you know why SLS is a problem, let’s take a look at some of the popular toothpaste brands that contain this ingredient. I used to think these brands were perfectly fine, but now I know better. Here are a few you should be cautious about:
Colgate Total
This is one of the most well-known brands on the market, but unfortunately, it contains SLS. While it does offer cavity protection and fresh breath, the SLS in it could irritate your gums and mouth.
Crest Pro-Health
Crest is another popular brand that includes SLS in many of its toothpastes, including Crest Pro-Health. While it claims to protect against cavities, gum disease, and bad breath, the SLS in this product could lead to mouth dryness and irritation.
Sensodyne Original
You may be surprised to see Sensodyne on the list, especially since it’s known for being a gentle toothpaste for sensitive teeth. However, many Sensodyne products contain SLS, which can aggravate the very sensitivity they claim to help with.
Arm & Hammer Advance White
Arm & Hammer is often praised for using baking soda, which is a natural teeth-whitening ingredient. However, many of their toothpastes, including the Advance White variety, contain SLS. This can counteract some of the benefits of the more natural ingredients and cause irritation.
Parodontax
While Parodontax is marketed as a toothpaste that helps with gum health, it contains SLS, which could irritate your gums and make sensitive gums feel even worse.
These are just a few examples of popular brands that contain sodium lauryl sulfate. If you have a history of canker sores, dry mouth, or sensitive gums, it’s definitely worth checking the label before you use them.
My Personal Experience with SLS
I’ve been using different types of toothpaste for years, and like many people, I never paid much attention to the ingredients. I used a few of the brands mentioned above, thinking that they were all equally effective. However, over time, I began to notice that my gums felt sore, and my mouth would often feel dry and uncomfortable after brushing.
At first, I thought maybe it was just my imagination. But after doing some research and discovering the link between SLS and oral irritation, I decided to make a change. I switched to an SLS-free toothpaste, and the difference was immediate. My gums felt much less irritated, and I no longer had that dry feeling in my mouth. Since then, I’ve become a big believer in reading labels and choosing products that are free from harsh chemicals like SLS.
What to Look for in a Good Toothpaste
Now that you know what to avoid, here’s what you should look for in a good toothpaste. It’s all about finding something that’s gentle, effective, and free from harmful chemicals:
Fluoride (or fluoride-free options): Fluoride helps protect your teeth from cavities. If you prefer fluoride-free, look for alternatives with natural ingredients that still fight plaque and promote oral health.
Baking Soda: This is a great natural cleanser that helps remove stains gently. It’s also a mild abrasive, so it cleans teeth without being too harsh.
Essential Oils: Look for natural essential oils like peppermint, tea tree, or spearmint, which can help freshen your breath and fight bacteria in your mouth.
Aloe Vera: Aloe is known for its soothing properties, so it’s a great choice for anyone with sensitive gums or who wants a gentler toothpaste.
Xylitol: This is a natural sweetener that can help fight bad bacteria and promote oral health, making it a great addition to your toothpaste.
My Top Toothpaste Recommendation
After trying several different brands, I finally found a toothpaste that works for me. I now use Tom's of Maine Natural Toothpaste, which is free from SLS and contains ingredients like aloe vera, fluoride, and xylitol. It has a nice, mild mint flavor, and my mouth feels fresh and clean without any irritation.
If you’re looking for a natural, SLS-free option, I highly recommend giving it a try. There are other great brands out there as well, so don’t be afraid to experiment and find the one that works best for you.
Bleeding Gums? Why You Shouldn’t Brush Your Teeth
Are you dealing with bleeding gums that won’t heal no matter what you do or try?
According to recent studies the way you brush your teeth can make or break your gums and teeth...literally!
Specialists warn that you should never ever use your toothbrush like this…
And anyone who does eventually risk sore, bleeding gums that will lead to tooth loss.
Watch this short video and find out how you should never brush your teeth.
Final Thoughts
Choosing the right toothpaste is more than just about fresh breath or a pretty smile—it’s about taking care of your overall oral health. By avoiding toothpaste with SLS, you can protect your gums, prevent dry mouth, and reduce the risk of irritation. Whether you choose a fluoride-free option or one with natural ingredients, be sure to check the label and make an informed decision for your health.
Remember, your mouth is the gateway to your body, so treat it with the care it deserves. By making the right choice, you’ll feel the difference, and your smile will thank you!





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