I recommend this refreshing mouthwash.

These are the two types of mouthwash I am currently using. This one is an Osstem product called Cool Mouthwash. It contains no artificial coloring and is effective for removing bad breath and preventing cavities. It also provides 99.9 percent antibacterial protection against oral disease-causing bacteria. I alternate between the blue product in the photo and the pink one from the same line, and I am satisfied with both. I intentionally use the smaller size because I find it burdensome to worry about when I will finish a large bottle. I do not use a fixed amount; I simply pour an appropriate amount into a cup. I am very satisfied because the sensation in my mouth is not excessively tingly, but just pleasantly mild. The price is also reasonable, and I trust Osstem products, so it is a great choice.