Works well for getting rid of surface stains. I am not a big soda or coffee drinker but I do have some discoloration for tea. This product helped eliminate surface stains in the most visible locations (i.e. front) and then supplementing with a whitening toothpaste gets the rest of the nooks and crannies. White strips are less effective on heavily stained or deeper stains...if that is what you need, contact your local dentist/specialist.
This toothpaste gets the job done but it seemed to be more gritty and has a stronger taste than what I am used to. Not a huge fan of peppermint personally but seems to be spot on with other peppermint toothpastes I've tried otherwise.