Why do sugar free mints last longer?

Sugar-free mints tend to last longer than regular mints because they often contain sugar substitutes, such as xylitol or sorbitol, which are more stable and have a lower tendency to absorb moisture. Additionally, sugar-free formulations typically use artificial or natural flavorings that can remain potent longer without the degradation associated with sugar. The absence of sugar also reduces the likelihood of crystallization, which can affect texture and longevity.