[This review was collected as part of a promotion.] These are great. Very gentle, yet they clean very well!

[This review was collected as part of a promotion.] I love the sensitive heads much better on the teeth

[This review was collected as part of a promotion.] I love my mouth after using this toothbrush. It feels so clean and fresh afterwards.

[This review was collected as part of a promotion.] Cleanest teeth I have ever had! I love how soft the bristles are. They don't make my gums bleed like some of these stiffer bristles do. Only thing that bothers me is when I brush my front teeth and have to open my mouth slightly it allows toothpaste to spray out but other than that, a overall great product.

[This review was collected as part of a promotion.] This brush head is very compact, which made me nervous at first because I am used to larger brush heads and thought it would take me a lot longer to brush my teeth. While I still do prefer a slightly larger brush head for basic brushing, this one is perfect for reaching difficult areas, especially behind the back molars as well as cleaning gently along the gum lines. The bristles are gentle in my mouth and hold up very well after multiple uses.

Brush head doesn't go all the way down on my Sonicare 5100 with click-on handle. I like the way it feels, and hooefully it will stay in place.

[This review was collected as part of a promotion.] I’m very disappointed that the original sensitive ‘S’ toothbrush head has been discontinued! The S2 is too soft. Makes me wonder if it will remove the biofilm that builds up on teeth. My periodontist recommended the original S toothbrush head. Now I have instructions to use CocoLabs’ toothbrush head since the Phillips S has been discontinued. Please consider manufacturing the S toothbrush head again!

I usually get what I assume are regular brush heads, but saw these and thought maybe they were worth a go with my sensitive teeth. I just tried it for the first time and definitely don't like these. The brush won't go any stronger than the lowest setting and my teeth are not clean. It's too bad I got a four pack, I'm not dealing with this for a year, so now I get to buy a new pack of a different kind and never use these, great use of money.

[This review was collected as part of a promotion.] I've only been using the new S2 for a few weeks and now the flashing toothbrush symbol is lighting up. What's with that? Also, the button to turn the brush on or off is stuck so hard I can barely turn it on. What's with that? Overall, I am not happy with your products.

The brush head on this new "S2" version is WAY TOO SMALL. S2 is ~25% smaller than the original S! Please bring back the original "S" for sensitive teeth.