First of all let me tell you friends that Colgate Visible White doesnt give you 1 Shade whiter teeth in 1 week like it claims. May with regular use of it might remove some stains formed by regular intake of tea and coffee but it doesnt make your teeth a shade whiter.
I used it for months but did not see any noticeable difference, although my teeth looked a bit brighter than before.Also package mentions to brush the teeth three times a day to see the desired results which is bit too much.
Also this toothpaste was not very effective for my other dental problems like sensitivity & bleeding gums so I had to switch back to my old toothpaste which I was using before.