EXPIRATION : Do essential oils expire?
There are expiration dates on the bottom of your bottles as required by the FDA
because they are consumable products. Oils lose efficacy over time but to make them last longer –
1. Keep them out of heat
2. Keep them out of direct sunlight
3. Keep the lids on - oxygen makes them evaporate
You will read all kinds of conflicting information online. Follow the tips above, use your oils regularly, use common sense and you'll be fine.