I saw the real whitening in 3 days when using the Colgate Optic white Oxygen Toothpaste and instant results using the Colgate Optic White Overnight Whitening Pen , wow it’s definitely reverse years is stains while sleeping , my favourite part about this products is that they are easy to use , affordable and used in the comfort of your home . I will proudly purchase the products and recommend them to others 💃❤️🫶😍 #very satisfied