If you have ever had a canker sore in your mouth you know how painful it can be and how long it can last. My dentist recommended that I try Colgate Peroxyl mouth wash, which is an Antiseptic Oral Cleanser. It claims to promote the healing of oral irritations and that it is ready to use. It does heal gum irritations in two days. The claim ready to use is correct - there is no measuring or mixing. It has a fresh, clean foaming action because it contains Hydrogen Peroxide. It does have some alcohol in it but this does not create an intense burning sensation even on a sore spot. It is great for denture wears that experience painful areas from ill fitting dentures. It comes in a bottle with a child proof cap and is sealed with a printed band that, if tampered with, it is easy to detect. Overall, it is great for a fresh, clean mouth. I found this product to do everything that the Colgate promises.