Yes, lip balms do expire.
Most store-bought lip balms have an expiration date. Generally, this is around two and a half years from the manufacturing date. However, once opened, a lip balm's shelf life can decrease depending on usage frequency and environmental conditions. Factors like exposure to heat or direct sunlight can accelerate the degradation process. Lip balms are expected to withstand various conditions, but their ingredients will eventually break down.
Here's a summary in a table:
| Feature | Description |
|---|---|
| Expiration Date | Typically around 2.5 years from the manufacturing date for most store-bought lip balms. |
| Factors Affecting Shelf Life | Usage frequency, climate, and storage conditions (e.g., exposure to heat). |
| Opened vs. Unopened | Once opened, the lip balm is more susceptible to degradation. |
