I received this as a gift. I started using this after I used up my Apagard Linamel. I tend to use Linamel a few times a week rather than every day, but is this one for daily use? The smoothness of my teeth after use seems comparable to Linamel. I drink tea all day, so the backs of my bottom front teeth would stain, to the point where I'd be asked "Do you smoke?" every time I went to the dentist (I don't), but since I started using this every day, the staining has improved. With Linamel, I didn't feel like it was preventing staining, probably because I used it less frequently. Since the usage is different, I'm not sure how it compares to Linamel, which is frustrating. I'm planning to buy the M Plus (standard) and other products to find one that suits my teeth!