Crest 3D White or Colgate Optic White?
Have you tried both? Which do you prefer/saw results/would recommend? What else do you use to help whiten your teeth?
I have both, been using Colgate Optic White now for about two weeks. (Got it free with a coupon and the purchase of 360 manual toothbrush) so far I can't say I see any difference personally. However, I received a few compliments just the other day so it must be working after all.
I also bought the Crest 3D White and 3D White Luxe (on sale for .99 each) and plan to use them once my tube of Colgate is done. I wonder if it will brighten, and whiten even more than Colgate.