Seabond Lowers Denture Fixative Seals Seabond Lowers Denture Fixative Seals feature a triple action formula that provides all-day hold & comfort while protecting gums & helping to seal out food particles. Approved by the British Dental Health Foundation, Seabond Lowers Denture Fixative Seals are made with a special adhesive derived from Kelp which is activated & strengthened by moisture in the mouth. Unlike pastes which weaken over time, they maintain their hold for a secure fix you can rely on. The other advantage over pastes is that there is no mess when applying & removing the seals & there is no danger of the adhesive oozing out. Seabond Lowers Denture Fixative Seals feature a wafer thin fleece which cushions & forms a soft seal against the gums ensuring comfort throughout the day. Seabond Lowers Denture Fixative Seals are flavour free & zinc free.