The shelf life of false eyelash adhesive can vary depending on several factors, such as the type of adhesive, storage conditions, and whether it has been opened or not. Here are the general guidelines:

To prolong the shelf life of false eyelash adhesive, it should be stored in a cool, dry place, away from direct sunlight and heat sources. Always keep the adhesive tightly capped when not in use to prevent air and moisture from getting in. Additionally, it's important to check the adhesive regularly for any signs of spoilage, such as a change in color, texture, or smell. If the adhesive appears to be dried out, clumpy, or has an unusual odor, it should be discarded, as it may not work properly and could potentially cause eye irritation or other problems.