I am always on the hunt for products that will whiten my teeth without damaging them and I had high hopes for this product as it was Colgate- a brand I trust. I used two tubes of the Colgate Optic White toothpaste (plus the whitening pen) and saw only a very very minor difference in the whiteness. It was actually so minor that sometimes I think that maybe I even imagined that I saw a difference. I used this toothpaste twice a day and did not get any sensitivity after using this product which is something I am always wary of when using whitening products.
Overall I do not think it is worth the money and I prefer other toothpastes.
I had poor expectations of this toothpaste.
I brought it about 7 weeks ago when it was on special just to give it a try.
While I'm not 3 or 4 shades lighter in toothie whiteness, there is a noticeable difference. Not so much whiter, just less yellowish.
The taste isn't too flash. Not minty fresh, just somewhat minty. The texture is fairly smooth. It recommends to only rinse your mouth with a very small amount of water after - my dentist recently told me to stop rinsing altogether but I hate the Stringy Slime some toothpastes leave behind - well this toothpaste does not do that. so flag the rinse!
I'm thinking I will grab another tube of this when it runs out... I'm interested to see if continued use makes any more difference.