These are good strips. They do work over time but it is different for everyone. Some people's teeth have a harder time whitening than others, even with professional in office treatments. Overall it does work over time and is worth a try.

This package does leave some sensitivity but it works amazing and I rarely use the full recommended amount of days treatments. I usually require only 3-4 days to completely clean my coffee stains off my teeth

I love these! They are so easy to use and effective. They whitened my teeth a lot! I would recommend these to anyone and they didn't bother my teeth sensitivity.

These teeth whitening strips work wonders on my teeth. they are very effective if used properly and often enough. they do not make my teeth sensitive during use at all. the taste is just alright. would rebuy

They definitely work! I have pretty sensitive teeth so I don't whiten often. But when I do, these are my go to. They don't leave my teeth achy like other whitening treatments do.

Literally love this product and the way it makes my teeth look. It allows me to feel comfortable when I'm ready to go out because I know my smile will be bright.

I love this product! It's my go to whitening strip product. I think it leaves my gums slightly sensitive but I think this is the most effective product!

I used this leading up to a friends wedding and I truly saw a big difference. As someone who consumes products regularly that stain teeth I thought this product worked really well

Love these white strips! I use them every time I want to give my teeth a little extra love in color. It definitely works - I use it last thing at night and it's never given me any sensitivity issues!

The real thing! Everyone should try this before considering whitening their teeth. Try it 1x a week for a month and then 2x a month...finally at your 3rd month; you will only have to use 1x a month. After your 3rd month then its 4x a year.