We're sorry to hear this, as our products do go through many quality checks to ensure that you can get the best possible results with them. Fixodent is formulated to provide 12 hours of hold. If it’s not holding that long, there are many factors that may be involved including, but not limited to ;• The condition of your dentures.• The fit of your dentures resulting from changes over time in the condition of your gums or bone structure.• Your nutritional health and saliva flow.• Very hot or very cold food and/or drink.• Medications you take. Be sure to always follow the usage directions on the package. For example, it’s important to always apply Fixodent denture adhesive to clean, dry dentures. We hope this is helpful, and please give us a call at (800) 214-8871 if you'd like further assistance.