I’ve tried numerous ones, and nothing has ever made a noticable difference on my teeth. My teeth don’t look that bad though, so I just quit caring about it and never buy any whitening stuff any more.
If your teeth are yellow all the way through, stain removers won’t do much. Some people’s teeth are permanently stained from taking tetracycline at some point in their lives (it was formerly used as an acne treatment).
I’ve tried numerous ones, and nothing has ever made a noticable difference on my teeth. My teeth don’t look that bad though, so I just quit caring about it and never buy any whitening stuff any more.
If your teeth are yellow all the way through, stain removers won’t do much. Some people’s teeth are permanently stained from taking tetracycline at some point in their lives (it was formerly used as an acne treatment).