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Home arrow Nutrition arrow Healthy Eating arrow COTN Review: Making Life More Fresh

COTN Review: Making Life More Fresh

Dr. Donika Vata
Written by Donika Vata, MD
Fact checked by Edibel Quintero, RD
Last update: March 19, 2024
10 min read 4018 Views 0 Reviews
clock 10 eye 4018 comments 0

Our resident health expert weighs up the pros and cons of COTN, a revolutionary new mouth spray designed to replenish moisture.

COTN Review - Making Life More Moist

How do we vet brands and products? Learn more.

Whether before an important meeting, a job interview, or after taking certain medications, we’ve all experienced that familiar dry mouth feeling at least once in our lives.  As a doctor speaking with patients all day, I often encounter that same cotton mouth and dry tongue feeling that even a gallon of water can’t fix.

To tackle this sticky situation, I’m always on the hunt for a product that is effective, safe for most of my patients, and can be carried anywhere for a quick hydration fix. That’s when I came across COTN mouth spray, which claims to quench your thirst in just one spray.

I was immediately intrigued by the use of natural oils and decided to put this product through its paces to see if it really could be the antidote to dry mouth.

What Is COTN Mouth Spray?

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Our rating:
  • Provides instant relief for mouth dryness
  • Restores moisture
  • Ensures oral freshness
  • Kickstarts saliva production
Get Started
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    Clinically tested
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    FDA approved
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    Easy to take on the go
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    Safe for teeth
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    Refreshing mint flavor
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    Free shipping
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    Bundle and save discounts
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    30-day money-back guarantee
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    Only one flavor available
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    Might promote acid production

COTN is a clinically tested, FDA-approved mouth moisturizer. The product is designed to tackle dry mouths, scratchy tongues, and parched throats that even a gallon of water can’t fix.

If you’re looking for something that provides instant moisture and relief on the go, then COTN may be an ideal choice – just one quick spray to make you feel refreshed. While its infusion of natural oils adds a moisturizing layer, the natural sweetness of xylitol kickstarts saliva production. 

This combination hydrates and restores a comfortable feeling in your mouth while also preventing the bad breath that often comes as a consequence of poor oral health. 

⭐ Rating


✅ Main ingredients

Xylitol, peppermint oil, eucalyptus oil

❌ Suitable for kids?


💰 Price

From $12.50

🔔 How to get started

Get it here

How Does COTN Mouth Spray Work?

To find out how well COTN works, I decided to order a bottle straight from their website and try it out. I was impressed with the free shipping, especially since the product arrived in just 3 days. I also liked the packaging, which was bright and colorful yet sturdy and easy to fit into my work bag.

Not only is COTN easy to use, it is also fast-acting. To put it to the test, I followed the instructions on the package, which first advised me to remove the cap and squeeze to spray. I then swirled the spray around my mouth and gave it a moment to absorb the mintiness.

The combination of xylitol and peppermint, eucalyptus, and tea tree oils began to work instantly, stimulating the salivary glands to hydrate my mouth and soothe any dryness I was feeling. COTN’s naturally minty flavor was also incredibly refreshing, and I found it really useful after eating a particularly pungent, garlic-filled lunch. 

You’ll only need one or two sprays to maintain this moisture, and the product can be used every day to combat dryness due to dehydration, stress, or medical conditions like diabetes. However, if you do have an existing health issue, I’d always recommend speaking to your doctor before adding a new product to your daily routine.

What Are the Main Ingredients of COTN Spray?

While looking at the back of the bottle, I noticed that COTN has quite an extensive ingredient list. What caught my attention was that every ingredient is clinically tested, non-toxic, and safe for teeth. Plus, the brand is really transparent about what they use, which is something I look for when recommending products to my patients. 

Here’s a breakdown of COTN’s main ingredients:

#1 Xylitol

Occurring naturally in plants, xylitol is a sugar alcohol that is often used as a substitute for regular table sugar. It makes a great addition to COTN, as it stimulates saliva glands and taste receptors for sweetness on your tongue but with 40% fewer calories than regular table sugar. Studies show it may help prevent tooth decay by stopping the growth of harmful bacteria. 

Xylitol also has negligible effects on insulin and blood sugar levels, making it safe for my patients with diabetes. While it may cause some digestive side effects such as gas and diarrhea for those who are sensitive to sugar alcohol, the body should adjust over time.

#2 Sorbitol

Another type of sugar alcohol, sorbitol is used in COTN for its sweetening properties. It also helps preserve moisture and keep your mouth hydrated. One reason I was particularly pleased to see sorbitol included in COTN is because the Food and Drug Administration (FDA) recognizes it can benefit oral health.

For instance, a study found that compared with table sugar, sorbitol can reduce your risk of developing teeth cavities. However, it doesn’t work as well for this purpose as other sugar alcohols like xylitol, which is why I was happy to see that both ingredients are included. 

#3 Eucalyptus oil

If you’re struggling with bad breath or simply need to refresh your mouth after lunch, eucalyptus oil is a winner. This essential oil has antibacterial properties that fight odor-causing toxins and may also prevent the buildup of plaque on your teeth and gums.

An added benefit of eucalyptus oil is that it may help treat the symptoms of cold, flu, and other respiratory diseases by clearing mucus from the chest and soothing a cough.

#4 Peppermint oil

Extracted from the leaves of the peppermint plant, peppermint essential oil has a sharp yet cool and refreshing odor and taste. Although mainly known for its effectiveness in treating the symptoms of irritable bowel syndrome (IBS), like eucalyptus oil, it also kills bacteria that may populate the mouth and cause unhealthy teeth.

As always, I recommend checking with your doctor before using products containing peppermint oil, as it can interact with certain medications, such as those given during the organ transplant process, drugs that affect liver enzymes, and antacids.

Benefits of the COTN Mouth Spray

To help you decide whether COTN mouth spray is the right choice for you, I’ve reviewed the benefits of this product below:

#1 Combats mouth dryness

By stimulating the salivary glands, COTN tackled that dry cotton mouth feeling I often get partway through a busy day of patients. The sharp menthol flavor and odor also provide a cooling sensation that keeps your mouth feeling moist while soothing any dryness and irritation you may be experiencing thanks to the product’s anti-inflammatory properties.

#2 Ensures oral freshness

I was pleased to see that many of the ingredients within COTN are antibacterial and antifungal, meaning they help kill the toxins within your mouth that cause tooth decay and bad breath. 

I also noticed that the mouth spray contains sodium bicarbonate, which is better known as baking soda. This rebalances the pH levels of your saliva to keep your mouth smelling fresh, as a low pH can encourage the growth of bacteria that cause inflammation, plaque, and acid production.

#3 Easy to take everywhere with you

One of the biggest benefits of COTN is that it comes in a small 30-milligram bottle but with an impressive 220 sprays. The compact packaging makes it ideal for carrying around in your bag or pocket, whether you’re taking it to work or college or using it as a breath booster after eating out. 

Personally, I found mine to be most convenient for taking to work and using in between patients for a burst of freshness throughout the day.

#4 Safe for your teeth

All of the natural oils and sweeteners used in COTN have gone through rigorous clinical testing to prove they are safe, non-toxic, and won’t cause damage to your teeth. Plus, I was impressed to see that the product’s manufacturing facility has FDA approval, meaning it has been reviewed by official authorities.

Downsides of the COTN Mouth Spray

Like any new product I review, I thought it was important to highlight some of COTN’s potential drawbacks before recommending it to you or my patients. Here are my thoughts:

#1 Only one flavor available

Due to the inclusion of peppermint oil, COTN mouth spray has a natural menthol flavor. While I found this to be refreshing rather than overpowering, I can understand why some people may not enjoy this taste, particularly if you don’t like minty flavors in general. For that reason, I’d like to see the brand introduce more flavor options in the future.

#2 Might promote acid production

Although I mentioned that COTN can help rebalance the pH of your saliva, it may also cause your mouth to become more acidic. This is because, as a sugar alcohol, sorbitol may produce acid within your mouth, allowing bacteria to thrive and increasing your risk of tooth decay.

However, sorbitol produces considerably less acid than glucose, so I’d recommend COTN over products containing regular sugar. Xylitol is also a great choice of sweetener, as it can’t be used by the typical acid-forming bacteria found in dental plaque as a nutrient.

COTN Mouth Spray Cost

When I initially looked at the price of COTN, I did think it was expensive at $19.99 per bottle. However, after comparing it to similar products and reading so many positive customer reviews, I feel that this is great value for money. 

You can also purchase 2 bottles for $29.99, or $15.00 each, or 4 bottles for $49.99, which works out to $12.50 per bottle. These are great money-saving deals, and you’ll also benefit from free US delivery within 2–5 days. 

If you’re unsatisfied with COTN, customers are eligible for a full refund within 30 days of purchase. 

Comparison Table

Comparison Winner: COTN

Clinically tested

FDA approved

Easy to take on the go

Safe for teeth

Refreshing mint flavor

Free shipping

Bundle and save discounts

30-day money-back guarantee


Uses xylitol, which doesn’t encourage acid production

Triple action formula

Choice of two flavors

Convenient to-go packet

Relatively affordable

Mild yet sweet taste

Lozenge has a smooth texture

Trusted by dentists



Easy to apply and discreet to use

Mild mint flavor

Provides immediate symptom relief

Hydration lasts for up to 4 hours

Immediate moisturization

Effects last for up to 2 hours

Non-drying formula



pH balanced

Mild mint flavor

Relatively affordable


Only one flavor available

Might promote acid production

Contains artificial flavors

Not gluten-free

Only one flavor available

Made with many artificial ingredients

Contains artificial ingredients

Flavor isn’t enjoyed by all users

How I Evaluated COTN Mouth Spray

As a medical professional, I like to make sure my reviews are thorough and based on scientific evidence. Therefore, I use a set of criteria to test each product, including COTN mouth spray. Here are the 4 categories I evaluated:

Quality 5/5

Quality refers to the ingredients used, the packaging, and the manufacturing processes of the products. COTN is manufactured in an FDA-approved facility and contains safe ingredients that have been tested and approved by ENT specialists and dentists, which is why I gave it full marks in this category. It also has a sturdy yet compact package that is easy to take on the go.

Effectiveness 4/5

COTN’s natural sweeteners and essential oils have been shown to be safe and effective in stimulating the salivary glands and hydrating the mouth. These ingredients can also help improve your oral health and keep your breath minty fresh all day long. However, I did take away one point because sugar alcohols like sorbitol can increase acid production in your mouth.

Price 4/5

Although COTN is relatively expensive, I think that the health benefits it offers certainly outweigh the costs. Their discounted bundles are also great value for money, and alongside free shipping and a 30-day money-back guarantee, I’d be willing to pay the price again for such a high-quality product.

Brand reputation 5/5

COTN may be a relatively new brand, but they’re already making a huge impact on the mouth spray market. Most of the reviews I read regarding the product and customer service were positive, and my own brief experience with the brand was the same, with super fast delivery. 

I can tell that COTN really cares about their customers’ experience, as they offer a “try before you buy” money-back guarantee.

A Word From Our RD

Expert image border HR_author_photo_Edibel
Edibel Quintero, RD
Medical advisor for Health Reporter

Xerostomia, or dry mouth, is a condition that develops when your salivary glands fail to produce enough saliva. This may result in a dry or sticky feeling in your mouth, sore throat, difficulty swallowing, and bad breath. In the long run, it can cause tooth decay, as saliva helps neutralize acids on the teeth that are created by harmful bacteria.

Dry mouth can develop for a variety of reasons, from taking certain medications or as a side effect of chemotherapy to anxiety or simply being dehydrated. One of the most simple ways of treating this is by drinking plenty of water, making sure that it is cold. You should try to avoid fizzy, caffeinated, or alcoholic beverages, as they can cause further dehydration.

Another way of keeping your mouth moist is with dry mouth lozenges or sprays. Be sure to select one that is sugar-free, and consult your doctor before adding any new product into your daily routine.


Where to buy COTN mouth spray?

To ensure that you’re getting the legitimate product and are accessing the best deals, purchase COTN mouth spray on their official website.

Is COTN mouth spray safe?

Yes, COTN is clinically proven to be safe, non-toxic, and effective for relieving dry mouth and freshening your breath. It has been tested and approved by ENT specialists and dentists and was created in an FDA-approved lab.

Can I use COTN mouth spray every day?

You are encouraged to use COTN mouth spray every day to maintain hydration, keep your breath smelling fresh, and help you feel comfortable on a daily basis.

Where is COTN mouth spray manufactured?

COTN mouth spray is manufactured right here in the US, in an FDA-approved lab in Illinois.


If you’re looking for a mouth spray that provides instant hydration, freshens your breath, and protects your oral health, I’d say COTN could be a great choice. Its blend of natural essential oils and sweeteners offers a range of health benefits, including fighting toxins that cause tooth decay. 

Plus, I found it super easy to slip in my bag and take on the go, so you won’t need to worry about bad breath whether you’re at work, college, or hanging out with friends. However, to address the root cause of dehydration, I’d suggest using a hydration supplement alongside COTN.

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Dr. Donika Vata
Written by Donika Vata, MD
Fact checked by Edibel Quintero, RD
Last update: March 19, 2024
10 min read 4018 Views 0 Reviews
0 Reviews

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