Superior Teeth Whitening Kit - 10 Trays - Professional Teeth Whitening Up to 8 Shades Lighter. Whitens and Restores Enamel - Microbeads, Calcium and Xylitol - Peroxide Free, Clinically Approved

I have used these for years and Amazon has been the only reliable source. The product is superb and clearly improves teeth whiteness. The first time of use can be a little off putting, the gel sit about your teeth but if you allow breath the vapours in it can make you want to gag I learnt very quickly how to avoid this. Having tried multitudes of whitening product, this product has the best and quickest results.

Service lovely, but the product itself does not work.

I am really impressed with these teeth whitening guards as after only one application my teeth were noticeably whiter! I'm a big coffee drinking which has obviously taken it toll of the colour of my teeth, despite brushing my teeth twice a day with whitening toothpaste for sensitive teeth. In the past I've tried using teeth whitening strips which were very fiddly and my teeth felt very sensitive afterwards but these guards from iWhite are so easy to use and didn't cause any issues regarding sensitivity. They simply slip over your teeth and work their magic for 20 minutes.

Very little & slow results. Not good value. 3 stars because it’s convenient - good idea to have pre-filled teeth strays

They were fine

I thought I’d give these a try and for the price I didn’t mind too much if they didn’t work! Was really surprised and impressed with these. I did use the full box of five sets over a week to get the results rather than just a one off. Think it’s worked really well and really happy with my teeth, even if it just lasts a few weeks or so, would definitely get them again

Unfortunately the product didn’t work for me. I like that the pre-filled trays are easy with it all being there but it can be hard to get the product to cover your teeth equally. It has made my bottom teeth really sensitive.

amazing product I have only used once and the whitening effect is dramatic! my teeth have never looked so white. I uses for 20 minutes just before bed and wake up with fresh pearly whites! used the classic one as well and was equally amazing I just put one for 20 mins after brushing my teeth while I do my make up in the morning and can definiely see the difference!