It may do something to the stain on the teeth but it didn't whiten natural yellow teeth. Very disappointing since so many good reviews about it. Don't waste money on this and try something else if your teeth are naturally yellow.

Noticed a difference after the first use,they made my teeth feel and look good,will definitely get these again

I’ve tried a few different things in the past and found they were okay but made my teeth so sensitive. I tried these and they are amazing! They don’t make my teeth sensitive and they look whiter from one use. I also use the toothpaste daily and can see a difference with this too. Will definitely be purchasing again

I received in my beauty box, I started using recently as I drink a lot of coffee and I use these just before going out whilst getting ready and I really do see a difference, I brought the toothpaste today and that is also good. They stay in place, more expensive than the others but after trying a few these are by far the best so I think worth the price, would recommend. Better than when I had teeth done by dentist years back. If you brush with the toothpaste then use theses then brush again afterwards = super white :))) but only lasts until next coffee or red wine so you might want to bear that in mind

Wow! After one use I can see where the stains are being removed and in some places the teeth look very white. I can’t wait to keep using them. Very sticky so don’t budge, don’t taste horrible or cause sensitivity. I spent a fortune a fair few years ago having my teeth laser whitened and I am pretty sure that using the strips will give me almost the same results. Okay they do not reach to my very back top teeth but they don’t show when I smile. A very good at home solution to keep your smile bright. Will be purchasing these once my trial pack from this months look fantastic box are finished.