I used this product morning and night for 3 days straight and whilst I agree I believe I did see whiter teeth, I now have what feels like burnt raw gums and a very sore tongue. It is painful to eat on one side of my mouth due to the tenderness. I have never had any dental hygiene issues and I can only put the change down to the new toothpaste. Sadly I won't be continuing to use this product as the pain is not worth the gain!

I did notice some whitening properties but in all fairness, to be serious, if had to decide, i would probably, at a push, consider, staying with aquafresh. I very much enjoyed their television advertisements circa mid 1990s. I felt they instilled in me, to my bones, a sense of nuclear family value shopper

Absolutely love this toothpaste. Significantly whitened my teeth after a few days of using this product and I liked that it kept my breath smelling fresh for a long time after using it. You don't need a lot as it goes a long way.

Used it for first time this morning and gums were stinging while brushing but figured it was just the strong ingredients . After rinsing I noticed the gums around the edges of my teeth had gone a pale white colour which subsided during the day but when attempted to use it again tonight my gums were so sore I couldn't even brush them for long and now where my gums were a pale this morning they are red raw. Thought it was just me but after reading other reviews it seems a common trend . Will accept the waste of $10 buying it and not risk using again after hearing other horror stories.

Within a week of starting to use this product a tooth on my plate fell off...never gave it another thought...at the end of the week another tooth came unglued and fell off...This product has cost me quite a bit of money. (Might add Ive had this plate for over 15 years with NEVER a loss of a tooth!) Not happy to say the least.

Its pretty strong formulation might have been the cause of the whitening but it also irritates my gums. If your mouth is not sensitive then I guess the formulation wouldn't be a bother. But it's effective if whitening is what you're after.

My teeth DID get brighter within a week as the product claims to do, but this was because it probably stripped the enamel right off my teeth! First was the sensitivity, hot or cold drinks were agony to consume after two weeks, and now 3 of my front teeth have become brittle and are chipping off. Stay away from this product.

I've got two huge sores on my tongue, I was sore down into my throat and I've only just realised it was this! It should be taken off the market.

I love it. Whiter than any product has delivered.
I'm a hard to please consumer, but the results are amazing. Love love love.
Have used products in the US and others and a moderate improvement, this is the best

1) Yes, it whitens teeth
2) It has damaged my taste buds. Three weeks after discontinuing use I'm just starting to get back anything but salty. I quite using the product when I had a salty taste in my mouth continually. Then I went on line and found literally hundreds if not thousands of complaints dating back years. Colgate, how can you continue to sell this?

Horrible product. Burnt my mouth when using and by morning my lips were cracked, swollen and numb. Going to the doctors now to see how I can stop the pain. :(

This product is great! I'm so glad i found this toothpaste it not only cleans and makes my teeth shinny it gradually whitens them. Not sure about some of the bad reviews though? But I've never had a problem (everyone's different) you can purchase this at woolworths, chemist etc

The toothpaste I feel is quite good at cleaning my teeth and removing plaque but I have seen absolutely no difference in the colour of my teeth. I have just had my braces removed about 1-2 months ago and everyone told me to purchase this product so I had very high expectations. My teeth are still yellow and I feel that other regular toothpastes help to lighten my teeth more than this so-called "whitening" toothpaste.

Three weeks using Optic White and I developed a condition called Geographic Tongue (google it!). The top layer of my tongue peels off in a different pattern all the time and I only used it for three weeks about a year ago - I wrote to Colgate at the time and they sent me $20 cheque and told me to post the product back. What a joke. At the time I thought my tongue would get better but it never has. I can't eat anything with salt, can't any more spicy food, even an onion makes it worse. I think many other people have been affected like this and would like to hear from them.
I still have my now empty tube of Optic White and the letter from Colgate.

I have been using this product along side my home tooth whitening kit (from my Dentist), i find it's a really effective maintenance product in between tooth whitening's.
My teeth feel really nice and clean afterwards, i can't use this product alone to whiten my teeth as i drink so much tea and red wine... :)

I used the tooth paste for about 3 weeks and my teeth are as sensitive as hell now.
I went to the dentist and parts of the enamel has been removed on my front teeth and now I'm up for $2000 in dental repairs.
DONT USE THIS PRODUCT!

I wrote the earlier review where I suggested a neutral score. Colgate got back to me and said "don't give up, use the whole tube" or a similar comment, I can't quite remember. I did and it made no difference. As toothpaste, it's ok, as a whitener, not so good.