I bought several items from the halitosis series. The tongue cleaner is easy to use cleanse the tongue quickly and thoroughly. The dental and Zung Engel can be used very sparingly, tastes a little funny (but tolerable) and works very well against mouth odors. In conjunction with the mouthwash, which I find even better, you have a really great fresh breath. It even works well on odors by food (onions, garlic 'but only in moderation).
Since one mouth smells so smells only in very rare cases myself, but a lot of people have been affected partly unconsciously that I can really put the products of Meridol Halitosis each warmly. The products are not cheap, but they are absolutely worth its price and are also very economical. I will definitely buy more.