Crest 3DWhite Daily Whitening Serum with LED Light, Leave-on Teeth Whitening Treatment

Not bad for teeth whitening

Doesn't hurt the teeth at all during and after application. As it's much more gentle than the strips, the result will not be as quick and prominent too. This is more suitable for people who is able to apply the emulsion on daily basis so as to see and/or maintain the whitening effect and most definitely recommended to people who have sensitive teeth and gum

I only whitening upper teeth first so I can see that it's working. As a dental hygienist, I can recommend this product. No sensitivity. Dry off teeth before applying gel. This product is great.

The results are minimal, u have to use a lot to show any visible defference, plus, the procedures kind of too much for this day and age. Read instruction carfully before puchase

Cannot say enough good things about this product. My teeth are so white that friends have pointed it out! Also, even if you don't use it for a while, your teeth remain white. Very impressed especially considered I drink a good amount of tea which is known to stain. This is 100% a buy and I have repurchased I think 3 times now. Bottle lasts too. Note: I use it every night so I do get some sensitivity. It's not unbearable but with how frequently I use it it's not a miniscule amonunt of sensitivity either. If you use it on and off (every other day and take a break every few weeks), you honestly will have little to no sensitiviy. Once you stop using it too the sensitiviy goes away.