[This review was collected as part of a promotion.] I received these charcoal refill packs and I absolutely love how clean they make my teeth feel. I was a tad bit skeptical seeing as it wasn't something you actually had to apply to the toothbrush, but i actually worked and made my teeth whiter and so much brighter.

[This review was collected as part of a promotion.] My teeth feel super clean after using the charcoal brush heads! I love how smooth my teeth are, you can tell how well it removes plague and build up. I will buy these from now on instead of my usual ones.

[This review was collected as part of a promotion.] Oral B always puts out great products and this is no exception! My teeth feel so clean and fresh. These brushes get in between teeth and it feels like they are polished every time. They also are gentle enough for my gums. I feel like my teeth are a bit brighter after using this for a short time.

[This review was collected as part of a promotion.] I started using these about a week ago and can already see a noticeable difference. My coffee stains have been slowly vanishing with the use of these charcoal brush-heads. I would highly recommend these to someone looking to brighten their smile!

[This review was collected as part of a promotion.] I didn't think this would actually work but in using in short time I've gained at least 5 shades whiter. Love it and definitely recommend to anyone who wants a bright smile.... You'll have to try for yourself to believe

[This review was collected as part of a promotion.] I have been very hesitant about charcoal products but that changed once i tried the Oral-B charcoal brush heads. The heads are very easy to place on your brush and feel great on my teeth and gums. The bristles are rounded and soft. I drink coffee and tea and the charcoal did a great job of getting rid of staining on my teeth. I am pleased with the ease of the way the brush head works!

[This review was collected as part of a promotion.] I highly recommend this product, Oral-B Charcoal for natural whitening. This product is a 2 pack replacement brush head refill for my Oral-B toothbrush. These refill pack brush heads are interchangeable for most Oral-B toothbrushes. After this product, my teeth are so much whiter than before. I have noticed coffee and tea stains removed. I drink coffee and tea daily, so my teeth seem to get a yellowish tint very easily. After using this product, my teeth are definitely whiter and the yellow stains removed. It may take a while to get used to the charcoal color of your teeth, at first though. I love this product!

[This review was collected as part of a promotion.] I have been using the Oral B charcoal refills for the past two weeks and have noticed a lighter shade. While I have used whitening toothpaste in the past, I find that it works more effectively with these charcoal bristles. They really do an effective job.

[This review was collected as part of a promotion.] I got the new Oral B charcoal brushes for my Oral B toothbrush. It was really simple to change the head with the new charcoal head. I like the cup of the toothbrush fit my teeth and cleaned each tooth easily. It was a gentle clean that made my teeth feel clean and almost polished. I have used it for 2 weeks now and I can see a little bit whiter teeth, just by changing the head of my Oral B toothbrush. I am excited to see how two more weeks will clean my teeth. Plus it did not leave a bad taste in my mouth after I used the charcoal refill.

[This review was collected as part of a promotion.] I needed new brush heads for my Oral-B electric tooth brush. I decided to try these charcoal re-fills to help whiten my teeth. It will take time to know if they will actually whiten my teeth but I can honestly say that my teeth feel VERY clean after using these new brush heads for about 4 days now.