I use a couple of days per week with a sonicare. I thought it might be too abrasive but after a year no sensitivity issues and whiter teeth.

Really enjoying this product and have noticed a brighter and whiter smile after just one use. My girlfriend is really impressed with my new smile thanks !!!

I just started using it 2 days ago. So far not yet see any result yet, it might use a long time to see the result.

It was a present for my mother, she can’t tell if her teeth have gotten whiter or not but she’ll keep using it. She needs to rinse her mouth many times.

Best Charcoal product I've used! The quality is very good

It's very nice, but the powder is too fine and you need to be very careful. The usability was good.

Because of the gaps between my teeth, the product got stuck between them and I needed to floss it out. A bit annoying but The product did whiten my teeth though.

Very good quality , size , package , benefit and use like

My teeth were brightened within 10 days.

Can’t say I noticed any significant difference using this product, but it gets everywhere! And can temporarily stain porcelain (it comes off but it’s more like the powder gets stuck and discoloration white porcelain for a bit). You’ll have to wipe down everything really well after using this. Oh, and it also gets stuck in your teeth so I found I needed to brush with just water for a while after using this to loosen it all up.