Crest 3d Vivid White Strips

I bought these off eBay after seeing rave reviews. My teeth were definitely whiter after a few applications but it is a little patchy - bits of teeth were whiter than others. But this soon evens out. I experienced no sensitivity which was great. Would recommend

This product is really easy to use. The product works quite quickly. The colour is definitely not 'celebrity white' however I am happy with the colour and it is noticeably whiter. I did experience some sensitivity but once I stopped using the product, and a couple of days later this went away.

I was recommended these whitening strips by my sister after seeing them work well for her. I agree that they work well to whiten my teeth also. They are a little annoying because you need to keep them in your mouth for at least 30mins. But if you wear them while watching TV then the time passes fast. I noticed my teeth were whiter after 1x use, and significantly more so after several uses. They are slightly pricey to use regularly but if you use them regularly, then you can begin to space out how often you need them.

I have used these a couple of times now and I found they are super easy to apply, and gave a noticeable change after the first use. Will continue to use!

I went through a box of these and after doing so, my teeth are so much whiter, I drink a lot of coffee so if my whitening toothpaste starts failing me I will use these strips again for touch ups! I did have some sensitivity though in my bottom teeth, while the strip was on I had quite a bit of pain. Top teeth were fine though

I had always wanted to whiten my teeth but the fear of going to the dentist always kept me away so I looked for alternatives that didn't involve me going into a dentist. I found an online website that sold the 3d Crest strips and I ordered me a pack of 20, I couldn't wait to give these a go!

The first time I used these it was really awkward, it comes with a top strip and a bottom strip, the strip is plastic and it has this gel on it, you mould it onto your teeth and let the magic begin! The first few times it was hard to talk or do normal things because my mouth would accumulate with saliva and it felt so weird! But after a few times it got easier.

After the 3rd go I noticed my teeth were 2-3 shades lighter, I was totally amazed! By the time I had finished my 20 strips my teeth were so white, the whitest I had ever seen! But with these new pearly whites my teeth had become very sensitive, just the fresh cold air was enough to make my teeth hurt, Sensodyne sensitive toothpaste did help keep the edge off the sensitivity.

These strips are fantastic, a lot of my friends and family brought these after seeing my teeth, the results are unreal!

I purchased these off Ebay after seeing Shaaanxo use them with such success. They do a fantastic job at whitening up your smile. I find them easy enough to use and they get results.

They're easy enough to use. Open the packet, peel them off the clear plastic then attach to your teeth for 30 minutes. I wouldn't go out with them on as they do feel slightly odd. Also when you remove them they're slightly gummy!

I have noticed slight sensitivity after using them but I found that they were well worth the money and I will be repurchasing.

I purchased these after hearing great things about them from numerous you-tubers and bloggers and they didn't disappoint. I only used once per week as have sensitive teeth anyhow and most of the time they didn't cause pain. Only minimal discomfort (due to exposed nerves, so probably wouldn't occur for those without this problem). Only once were they for some reason excruciating and I had to remove? Not sure why they were so sore just the once. I have only used about 7 sachets (7 uses) and my teeth are noticeably whiter. Definitely recommended, but just be aware that they may not be pain free.

I came across these in the local pharmacy when living in Hong Kong. I've never tried any teeth whitening products before, and being a coffee addict and (ex) smoker I was keen to try these out. The simplicity of the product is what was most appealing to me (no mucking around with gels and moulds).

There are 2 clear strips per single use; a longer one for the top row of teeth, and a slightly shorter one for the bottom row of teeth. Application is really easy, you simply just peel the strips off and stick them on to your teeth. (I pressed the strip down over one tooth at a time to make sure that the front surface was covered properly and evenly). There is a bit of overhang, but just tuck this under the back side of your teeth.

They do stay on and in place until you peel them off after the 30min processing time. The product on the strips foams up a bit while you have them on. The taste isn't the nicest, but I didn't find it overly strong or unpleasant. I only noticed 'shocks' of pain while wearing the strips - I didn't have any lingering sensitivity at any other time. I used these every evening, after brushing my teeth just before bed. I had noticeable results after about a week, and after completing the full course exactly as advised, my teeth were most definitely white! I couldn't believe the difference when I saw photographs of me smiling.

It's been about a year since I did that first treatment, and I'm really glad that you can purchase these here in NZ (even though they are more than twice the price!), as it's time for a touch up.