It depends on the scent. I have been creating scented food jewelry and miniatures for over 10 years and I still have pieces that smell just as strong as they did when I created them. From my experience, I have notice that the darker scents like grape, cinnamon, chocolate, gingerbread, pumpkin spice, tend to last longer than the fruitier scents. Most of my past customers have reported some scents between 6 months to a year. Again it greatly depends on how you care for you jewelry.Please note: If you have a lifetime warranty, you are able to receive re-scenting services for the lifetime of the product if needed. Please read the warranty information in the article below.