My advice is; if it looks and feels as you remember, it should be fine to use and should still repel insects. There may be a small reduction in effectiveness over time, but not much. It should be perfectly safe to use. My Alfresco has an expiry date on it. Is it still OK to use near that date? If you can still smell the beautiful Alfresco scent of our moisturizer and spray perfume insects will smell it too and should stop biting you! We're not being funny. The best before date on our bottles are a guide and the repellency can vary depending on the country, time of year, how much insects like you and even the time of day.