I dint felt any differencs between visible white as its challanging white teeth in4 weeks but as of now its 2 months and I dont feel any such difference. Other then its paking, designe and color nothing much difference between the one basic colgate that we are using from past 15 years. Though I am using colgate from past so many years I expected this product of colgate to be genuine and effective but unfortunety it is not.