Secure Denture Adhesive is the only zinc free, waterproof denture adhesive that promises up to 12 hours of holding power. Our denture adhesive creates a long-lasting bond between the denture and the gum, creating a tightly-bonded seal that  prevents food particles from leaking in. Discovered by an Austrian dentist to give better denture support for his patients, Secure provides new hope for people with lower and upper denture problems. No more slipping, sliding, or embarrassing moments!