Tried out the new Colgate optic white oxygen range and I loved😍❤ it. Got whiter teeth 😬 in just 3 days. Started seeing instant results from day when of using The Colgate Optic White Overnight Whitening Pen I can feel it working. My teeth look even better than they did in years all the yellow stains used to stress me out. I must say the new Colgate optic white oxygen range is better than the previous Whitening products I've used. And my Favourite thing about the Colgate optic white oxygen range is the Toothpaste with active oxygen technology and its Enamel Safe. I am definitely recommending the new Colgate Range to everyone who is struggling with teeth stains removal.