[This review was collected as part of a promotion.] I used the charcoal refill on my Oral B toothbrush and I found the charcoal bristles to be difficult to get used to at first but after a couple of times I found them to be acceptable and actually noticed my teeth having a cleaner feel to them.

[This review was collected as part of a promotion.] I picked these up a week ago because I was looking for some refills. I was unsure if I should get charcoal or regular. I'm very happy with these charcoal refills! They have made a big different in the whitening of my teeth!

[This review was collected as part of a promotion.] I thought I would try something a little different for my electric toothbrush replacement so I tried these charcoal refills. I can't say I noticed any difference in brushing ability or whitening from these. I would say if you are going for a black color theme in your bathroom then you'll love these. They snapped right into my toothbrush like the other replacements. They did not leave any black bristles in my mouth or otherwise.

[This review was collected as part of a promotion.] I saw these Oral B whitening heads and decided to give them a try. I had my doubts about the total ly black bristles and the whitening claim. After using them for a week I believe that they are working. As time goes by the results will hopefully be good.

[This review was collected as part of a promotion.] I really enjoy this line of Charcoal replacement heads. I find that more stains are removed, it deep cleans, and leaves my smile whiter and brighter. Every morning I brush and it feels like I'm leaving the dentists office! I will continues to repurchase!

[This review was collected as part of a promotion.] I was a bit hesitant to try the Oral-B Charcoal Refills, 2 count, I mean they are dark and I was concerned about dirt for some reason. My husband was the first to use it and said that his teeth, gums and mouth felt really good and clean after he used his first. After my first use, I was just as pleased. If you are unsure, try the single count. I am glad for the two count refill for the both of us.

[This review was collected as part of a promotion.] Not too sure if they made my teeth whiter, but I love the way my Oral-B Charcoal brushes make my teeth feel like I've just come from the dentist for a cleaning! Have used my rechargeable Oral-B Brush for many years and dentist has said that my teeth and gums have never looked better! Love all of Oral-B products

[This review was collected as part of a promotion.] I have been using electric toothbrushes for quite some time now and have yet to find the perfect head - until now. These charcoal refills fit perfectly onto my Oral-B rechargeable handle. I have noticed slight whitening but I haven't used them long enough to see long-term results. This size reminds me a lot of the one at the dentist which brushes each individual tooth. Couldn't be happier with these!

[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 love these, they make brushing my teeth more enjoyable because I know I'll have an effectively clean mouth and gums afterwards. They're really easy to attach to the base, and my mouth always feels totally clean and fresh afterwards.