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How to whiten teeth with activated charcoal
  • Beauty

How to Whiten Teeth With Activated Charcoal

Katie WellsJul 5, 2018Updated: Mar 29, 2020
Dr Scott Sorries Medical Advisor Wellness Mama
Medically reviewed by Dr. Scott Soerries, MD
Reading Time: 7 min

This post contains affiliate links.
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Wellness Mama » Blog » Beauty » How to Whiten Teeth With Activated Charcoal
Table of Contents[Hide][Show]
  • Whiten Teeth With Charcoal?+−
    • How Charcoal Works
    • How Does Activated Charcoal Whiten Your Teeth?
  • How to Use Charcoal to Whiten Teeth+−
    • Where to Get Activated Charcoal
  • Charcoal Teeth Whitening FAQs+−
    • Does It Stain Crowns/Veneers/Fillings?
    • Does Charcoal Pull Calcium From the Teeth?
    • Is Charcoal Too Abrasive for Teeth?
    • What Kind of Stains Does Charcoal Work On?
    • Whiter Teeth? An Update
    • p.s. An Update to the Update
  • Bottom Line on Tooth Whitening

Years ago, a reader from India told me about a natural way to whiten teeth and it is the only method I’ve used since that time. Her suggestion? Use charcoal to whiten teeth with!

Whiten Teeth With Charcoal?

I was very skeptical that charcoal could actually help whiten teeth. I already kept activated charcoal around the house since we have kids and this highly absorbent substance is often used in hospitals for food poisoning. Because I kept it around the house, I’d also seen firsthand what happens when it spills on a kitchen floor (grout = permanently ruined) so I was afraid it would stain my teeth and not whiten them.

There are whitening toothpastes out there that have activated charcoal in them, but I decided a daily brush with charcoal toothpaste sounded like too much mess. I prefer to use the straight black powder version for a deep treatment.

How Charcoal Works

Activated charcoal is a highly absorbent substance. It removes toxins when they adhere to the surface of the charcoal. It is not absorbed by the body, but passes through the GI system, so chemicals and toxins bind to it, which then pass through the body and are expelled by the digestive system.

In the 1800s, two men took lethal doses of poisons (including arsenic) and survived without harm… their secret: they mixed the poisons with activated charcoal powder. (Stating the obvious: do not try to repeat these experiments!)

Activated charcoal is extremely effective at binding to toxins from household chemicals, ingested medicines, and other chemicals from the body, especially when taken within 30 minutes of ingestion. For this reason, it is a great first treatment for any kind of poisoning, but should not be taken within several hours of medications (or even vitamins) that DO need to be absorbed.

I had used activated charcoal when I had an awful bout of food poisoning, and it worked wonders! I mixed about a tablespoon of activated charcoal with water and drank quickly. The food poisoning symptoms went away within a couple of hours. This one dose was enough to remedy my food poisoning, but others report having to take this dose several times within a day before finding relief.

Charcoal is not a substance I would take regularly, as it can cause constipation and block mineral absorption if it is taken when it is not needed. Also, it can’t be mixed with dairy products or many foods, as they lower its effectiveness. Charcoal can also cause dehydration in large doses so it is important to consume enough water when consuming charcoal.

How Does Activated Charcoal Whiten Your Teeth?

how to whiten teeth naturally with charcoalSo, it’s all well and good that activated charcoal is an effective poison remedy… but does it really work to whiten teeth?

As I said, since the powder stains everything, I had always worried that it would do the same to my teeth. (One of my kids dumped it in the kitchen one time and it does stain tile, grout, clothes and shoes… just so you know!).

I did some research and found out that even though it temporarily makes the mouth look extremely black (picture for emphasis!) it has the same effect as it does when ingested: it pulls toxins from the mouth and removes stains. (Fair warning: when you open your mouth, it is completely black and rather scary looking! Right after I did this the first time I was intensely worried that it would stain my teeth.)

To my surprise, all of the black washes away and it makes your teeth feel extremely clean and smooth. After a few uses, my teeth were noticeably whiter too.

Further research I’ve done on this showed that activated charcoal can actually be helpful in changing the pH and health of the mouth, and as such is effective in preventing cavities and killing the bad bacteria present in tooth decay and gingivitis. For this reason, I now use it as part of my remineralizing protocol for teeth, along with my Wellnesse remineralizing toothpaste and charcoal toothpaste.

Of course, it is important to check with your own doctor and dentist before using this or any substance internally or orally.

How to Use Charcoal to Whiten Teeth

I’m sure everyone does it a little differently, but here’s the routine I’ve worked out over the years. Once you have it down, the whole process takes about 5 minutes. You can also see the whole thing in action in the video below.

  1. I recommend having two toothbrushes, one for applying the charcoal and one for brushing your mouth out after. A cup for rinsing is also helpful. (Tip I learned the hard way: Have a microfiber cloth on hand to wipe out the sink when you’re done, also.)
  2. Dip a clean, wet toothbrush into the powdered charcoal (or dump a capsule of charcoal on the toothbrush).
  3. Lean over the container of charcoal and quickly put the charcoal-covered toothbrush in the mouth (this is to protect your sink).
  4. Brush in small, very gentle circles to apply charcoal all over your teeth. Let sit for 2 minutes.
  5. Spit and rinse until your mouth is clear of charcoal. (Again, be careful of surrounding surfaces.)
  6. To any remaining charcoal out of your mouth, wet the the second clean toothbrush, brush lightly, and rinse.
  7. Wipe out the sink with the microfiber before it dries for easiest clean-up.

Your mouth will feel amazingly clean…. your sink, not so much! Use as often as needed. Readers have also reported mixing the charcoal with water and swishing with it for two minutes.

This video shows how I brush with charcoal:

Where to Get Activated Charcoal

Most natural health stores carry activated charcoal in loose powder or capsule form and it is also available online. I keep both the powdered and capsuled forms on hand in case it is needed for poisoning and I keep the powder in a small glass jar for tooth brushing. Make sure that the charcoal is from wood or coconut sources and not petroleum-based.

It is also very important to note the difference between food/supplement grade activated charcoal and other forms of charcoal. I hope it goes without saying, but I’ll say it to be safe:

Please do not use any other form of charcoal besides activated charcoal in your mouth or internally. Do not use leftover charcoal from a BBQ grill or charcoal briquettes. Do not use charcoal pencils or any other type of charcoal.

Charcoal Teeth Whitening FAQs

I’ve received some of the same questions about this process multiple times so I’ve asked friends who are dentists and done further research to try to answer them:

How to Whiten Teeth With Activated Charcoal

Does It Stain Crowns/Veneers/Fillings?

I don’t have any of these in a visible place to be able to share any firsthand experience. Readers have reported trying this method of teeth whitening without a problem on these types of surfaces, but I’d definitely recommend checking with your dentist before using this or anything else if you have any of these.

Does Charcoal Pull Calcium From the Teeth?

Another question that I’ve received often. As always, check with a dentist if you have concerns about your teeth and before using any substance to whiten them. From the research I found, charcoal binds mostly to organic compounds and not minerals so there should not be a concern of it pulling calcium from the teeth.

Is Charcoal Too Abrasive for Teeth?

This is one concern that some dental professionals have expressed about whitening teeth with charcoal and it is a valid concern. I was unable to find any research that evaluated how abrasive charcoal was to the surface of the teeth. A suggestion from my friend who is a dentist is to use the charcoal without brushing or scrubbing.

She suggested that anyone worried about charcoal being abrasive or anyone with sensitive teeth could accomplish the same thing by simply dabbing charcoal onto the surface of the teeth with a finger or cotton swab and letting it sit on the surface of the teeth for two minutes before swishing with water and rinsing.

This would allow the charcoal to come in contact with the surface of the tooth long enough to remove surface stains without the brushing or scrubbing action that could be too abrasive. Using a toothbrush with round-tip bristles is gentler on teeth and good for oral health in general, so considering switching to this type of toothbrush.

What Kind of Stains Does Charcoal Work On?

My dentist friend also advised me that activated charcoal will only work on surface stains that it is able to bind to, especially those from drinks like coffee and tea. It won’t usually work on teeth that have yellowed from antibiotics or other internal problems.

Whiter Teeth? An Update

Here’s a picture cropped from a photo at a family wedding so it looks pixelated). I’m super happy with the results!

how to reduce cavities and tooth decay

After using the activated charcoal for a few months and swishing with diluted regular 3% hydrogen peroxide when I remember (at the recommendation of a dentist) I am really happy with how white my teeth have become!

p.s. An Update to the Update

I recently discovered this new tooth whitening product that whitens teeth with activated charcoal and LED light. So far it’s working even better than the activated charcoal alone, with the added bonus of making the process less messy. It even plugs into my phone for easy use when I travel.

Bottom Line on Tooth Whitening

I plan to continue whitening my teeth with activated charcoal, but if the whole black-teeth thing doesn’t appeal to you I have found a few other natural ways to whiten teeth. Check out this post to see how they measure up to the charcoal method.

And you’ve found other natural ways to maintain those pearly whites, let me know what works for you!

This article was medically reviewed by Dr. Scott Soerries, MD, Family Physician and Medical Director of SteadyMD. As always, this is not personal medical advice and we recommend that you talk with your doctor.

What do you think? Am I crazy? Would you try it for whitening your teeth?

Activated charcoal is a simple way to naturally whiten teeth and promote oral health at home.

Category: BeautyReviewer: Dr. Scott Soerries, MD

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About Katie Wells

Katie Wells, CTNC, MCHC, Founder of Wellness Mama and Wellnesse, has a background in research, journalism, and nutrition. As a wife and mom of six, she turned to research and took health into her own hands to find answers to her health problems. WellnessMama.com is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.








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Reader Interactions

Discussion (486 Comments)

  1. Michelle Abernathy

    January 23, 2012 at 12:48 AM

    What does the mag do and is there a form I could actually get in her? She’s not much of an eater still. I can squeeze a CLO/Butter oil capsule in her mouth on occasion. I’ve been pondering mixing coconut oil, Vit D, perhaps the CLO/Butter oil into some kefir? She actually drinks that. Might be a great way to hide what she needs. In the past she has enjoyed drinking lemon-flavored fish oil, perhaps that would be helpful too? 

    And about the AC, there wouldn’t be a problem with her swallowing what’s on her teeth? I don’t want it to be a waste, you know?

    Reply
    • Wellness Mama

      May 20, 2012 at 9:46 PM

      I wouldn’t give her large amounts of the AC, but the amount on her teeth should be fine. My kids will take it in applesauce.

      Reply
    • Emmie

      March 15, 2013 at 5:11 AM

      I don’t think it would be a good idea for her to swallow what is on her teeth because of it pulling out any toxins. If she swallows it, she will ingesting the toxins the AC just pulled from her teeth.

      Reply
  2. Michelle Abernathy

    January 23, 2012 at 12:32 AM

    I wonder what your thoughts on using this with a 20 month old? She has tooth decay happening with brown discoloration around her lack-of-enamel spots 🙁 We cannot night wean, so I am going to do it naturally. Tomorrow I will be making the toothpaste from your site.

    Reply
    • Wellness Mama

      January 23, 2012 at 12:36 AM

      It won’t hurt her at all, and it doesn’t have a taste, though the color might make her really curious :-). Is she taking any supplements? I’d encourage the cod liver oil/butter oil blend, the probiotics, vitamin D and some magnesium if she isn’t already taking them, as this will give the internal support for remineralization also. Also, making sure she isn’t eating much grains, sugar, nuts or beans for at least a couple of months will help the remineralization process. Good luck!

      Reply
      • Michelle Abernathy

        January 23, 2012 at 12:49 AM

        (oops, meant to reply here, doing so just in case)

        What does the mag do and is there a form I could actually get in her? She’s not much of an eater still. I can squeeze a CLO/Butter oil capsule in her mouth on occasion. I’ve been pondering mixing coconut oil, Vit D, perhaps the CLO/Butter oil into some kefir? She actually drinks that. Might be a great way to hide what she needs. In the past she has enjoyed drinking lemon-flavored fish oil, perhaps that would be helpful too? And about the AC, there wouldn’t be a problem with her swallowing what’s on her teeth? I don’t want it to be a waste, you know?

        Reply
      • Lark

        April 20, 2012 at 12:34 PM

        Hi wellness mama. What exactly is the cod live oil/butter oil blend, the probiotics, vitamin D and magnesium do? Also how much of each?

        Reply
        • Wellness Mama

          May 20, 2012 at 9:49 PM

          the FCLO blend helps replenish Vitamins D, A and K plus Omega-3s, which the body needs to build new dentin and enamel. The probiotics help with the good/bad bacteria ratio in the mouth and the Vitamin D and Mag are necessary for new bone/health formation. I take 1tsp+ of FCLO daily, 2 capsules of probiotics, and Vitamin D and Mag daily.

          Reply
  3. Ruthy

    January 20, 2012 at 1:04 PM

    What about those who have natural teeth AND a partial/bridge/denture?  Remove them when using AC or does it stain the artificial ones?

    Reply
    • Wellness Mama

      January 20, 2012 at 1:52 PM

      It shouldn’t stain any of those, but it also won’t remove stains in the exact same way, so if the artificial ones are lighter, I’d leave them out, if they are darker, I’d leave them in. You probably won’t see as much of a change on the artificial teeth because there is no living surface to remineralize.

      Reply
  4. Holly

    January 16, 2012 at 11:47 AM

    Great idea about using the utility sink!

    Reply
  5. Dotty

    January 16, 2012 at 11:01 AM

    I wonder if this is at all harmful for the enamel.  I have some stains on my teeth, possibly partly from taking antibiotics for extended periods, and would like to try it.  I guess you brush gently so that the abrasiveness won’t hurt the enamel and gums.

    Reply
    • Wellness Mama

      January 16, 2012 at 11:43 AM

      Yeah, gentle circles, but really, the powder is very fine and not very abrasive at all, from what I understand. It is definitely less abrasive even than baking soda, and that has a very low abrasive rating.

      Reply
    • Teresa

      January 21, 2012 at 11:16 PM

      There are different types of stains, intrinsic (within and extrinsic (external).  
       Tooth whitening aids work for extrinsic staining. Stains that develop on the outside of the tooth, typically from foods or beverages: i.e. tea, berries, coffee, etc.  

      Intrinsic stains form from inside the tooth and are often caused by certain antibiotics (tetracycline) taken as a young child during critical tooth development or your mother ingested certain types of antibiotics during pregnancy . The tooth could have been injured, too.  Yellowing (from within the tooth) can occur from aging, too.  These types of stains are much harder to reverse and involves micro-abrasion techniques – removing tooth enamel. 

      Reply
      • Teresa

        January 21, 2012 at 11:21 PM

        Just to note, the micro-abrasion technique is done by a dentist. 

        Reply
      • Wellness Mama

        January 23, 2012 at 12:41 AM

        Taking supplements and changing the diet can also have a noticeable effect on tooth color. My husbands teeth were yellowed from antibiotic use as a child and his have whitened considerably in the process of working to reverse his cavity.

        Reply
        • Teresa

          March 17, 2012 at 11:45 AM

          If over a lifetime, your husband never had his teeth whitened, then he was likely much like most people with some external staining.  Any potential lightening may have been surface whitening  improving overall appearance without whitening the inside of the tooth. 

          Reply
          • Wellness Mama

            May 20, 2012 at 9:48 PM

            Possibly, but he noticed the biggest changes from improving his diet/supplements, and not just from the oral regimen he was on.

    • Austin

      December 7, 2013 at 7:25 PM

      It’s also important to note that the inside layer if your teeth (the dentin) is yellow, and the outside layer (the enamel) is white. If you scrub too hard, you’ll weaken the white enamel and reveal the yellow dentin.

      Reply
  6. Lennie Rickman

    January 16, 2012 at 9:47 AM

    I tried brushing my teeth this morning with the AC. Surprised that the taste is neutral. I used a designated toothbrush now reserved for this purpose since I knew it would stain. I also used the utility sink in the laundry room. It takes a lot of rinsing to remove the charcoal from mouth and teeth. I even brushed my teeth with regular toothpaste to get ride of the tiny particles. I’m excited that this has potential for good gum health. I plan to continue this routine a few times a week and see if the teeth get whiter.

    Reply
  7. Natalie

    January 16, 2012 at 5:01 AM

    This is awesome.  I had no idea.  I have sensitive teeth so all the strips and other whitening treatments are not an option for me.  Thanks!
    Missy – that is awesome it worked for that, too!

    Reply
  8. Missy

    January 15, 2012 at 6:32 PM

    This is hysterical and I am so trying it.

    Here is what I know about activated charcoal. After my 2nd kiddo was born I had a terrible problem. Let’s just say it was a problem that most teenage boys would be proud to have. I was not. at. all. proud.

    Sigh – true confessions – I was a fart machine. I could not control them, and they STUNK. Like, oh my word, BAD.

    As you can imagine this was rather distressing to me. I tried many things and finally read to try activated charcoal – and the problem was cured instantly. Really. That afternoon.

    So, add that to you list of uses!!

    Reply
  9. Sora

    January 15, 2012 at 7:36 AM

    Hi there! I’m a new subscriber and I cannot believe I haven’t come across your site before! This is so helpful.

    I’ve wanted to do something for teeth whitening for a while. I have badly stained teeth from coffee. I can’t wait to try this out!

    Reply
  10. Flan

    January 14, 2012 at 12:05 AM

    are you using the AC every day, or just occasionally?

    Reply
    • Wellness Mama

      January 14, 2012 at 12:21 AM

      I use it every few days

      Reply
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