Dental-use only Xylitol 100% Gum Set includes one bag each of: Clear Mint, Apple Mint, Muscat (Long-lasting flavor), and Orange (Long-lasting flavor). Purchased six months ago and stored unopened at home. There is no expiration date. Can be enjoyed for several years without losing flavor when stored at room temperature. 100% Xylitol is used as a sweetener. (99.9% used in the long-lasting flavor types) It has excellent features exclusive to dental use and is recommended at dental clinics. * Anonymous delivery * Delivered in simple packaging