Crest3D Whitestrips, Supreme Flexfit, Teeth Whitening Strip Kit, 42 Strips (21 Treatments)

I’ve had decades of smoking and coffee drinking, my teeth were yellowing and I was getting self-conscious of my smile. I tried everything else: whitening toothpaste, gel that goes in a tray in your mouth with a light, and several other, cheaper whitening strips. By the time I add all those products up, I would’ve saved money if I had just taken the plunge and gotten these. After the 2nd treatment I noticed a difference. I’m on treatment 6 now, and continue to actually be able to see the difference this is making. I had a little teeth sensitivity, but not bad at all. I’ve been told that genetically, I have good teeth. Never a cavity or any issues, so I’m assuming that plays a part in not really having sensitivity with these. I have never used these strips before so I am cutting them in half long ways, to get more treatments out of them. I also prefer how it fits on my teeth that way. When I apply them I do run my finger over each tooth to make sure everything is fully covered. I am so glad I finally spent the money to try these and have learned my lesson. No more cheap, knock off stuff for teeth whitening, I will stay with Crest white strips from now on!

Great products I will always go back to these! I did have some sensitivity, but used a sensitivity toothpaste to help. I saw a difference after one use.

Would probably work a lot better if they actually adhered to teeth. Consider another version or brand

Works great, but did make my teeth hurt after the first usem

These are without a doubt the most whitening/brightening whitestrips I've ever used. The strips are so uniform and the whitening ingredients are so well spread onto the strips it's crystal clear.I've been using crest whitestrips for 14-15 years now. I started all the way back before the non-slip was even invented and you'd have to just kinda bite down on your teeth to prevent them from sliding around. They've been VERY effective in the past, which is why I've continued to use them throughout the years, but this pack right here is the most effective one I've ever used. I'm only halfway done with the set but my teeth are OUTLANDISHLY white. I started getting compliments from coworkers my 3rd day in. I did some research after buying them because I wanted to know what made these different, and it turns out it has the highest hydrogen peroxide concentration from all other strips out there. Their other strips contain 3.5%, 8% etc, this one's supplying the highest concentration you can get. I will say, if you're new to whitestrips they work by oxidizing the surface of the tooth to remove the stains soaked into the teeth. It's enamal safe, but you'll notice sensitivity. By day 5 I had to go out and get some sensodyne . If you're having sensitivity issues, I recommend getting sensydne and when you go to brush your teeth, spit out the toothpaste, not rinse. When you go to bed, brush softly and spit out the toothpaste, go right to bed and the floride toothpaste will help stick to your teeth and stop that sensitivity.

This comment is my opinion only. I cannot trust Crest anymore. These strips are identical as the ones I just returned, same strip sleeve with identical wording, front and back, as the "19 Levels" except for 1 exception: Keep them on for 60 minutes as opposed to 45 minutes. Are you kidding me? No mentions of the "25 Levels" anywhere on the strips except on the outer box. This is seriously misleading and I will never buy their products again.

Omg my teeth are so white not even joking!!

It does exactly what it says. After 3 strips (actually 2) I saw my teeth whiten. I have no major stains just general yellowing from coffee and dark tea drinking daily (so you can imagine). I’ve used this pack in the past and I remember it being so effective and lasted for a year or more. I got many compliments on how white my teeth were. So that confirmed to me that it works! Later on, I tried another Crest strips set called “Glamorous” and it didn’t have the same effect at all, cheaper in price though. I read more about it and found out some Crest White Strips packs have 14% hydrogen peroxide and therefore whitens better. These are now my go to strips (I’m wearing as strip as I type). What I like about these is that they whiten your teeth and remove so much staining and REMAIN white for a year or more. So I’ll be definitely buying another pack. Just be aware that they do cause some sensitivity which is normal. I bare the pain because the end result is worth it.