According to Estee Lauder’s official instructions, the expiration date of eye masks is usually indicated on the product packaging. The expiry date can be confirmed by looking at the label on the product box or the mark on the bottle. The common way to express the validity period is in year, month, and day, such as December 31, 2022.
In addition to the markings on the product packaging, there are other ways to determine whether the eye mask has expired. You can take a closer look at how the product looks and smells. If a product is discolored, spoiled, or has a strange smell, it's probably expired. If you feel any discomfort such as tingling, allergies, or redness during use, it may be because the product has expired.
There are also some things you need to pay attention to when storing and using eye masks. In general, it is very important to keep eye masks at a good temperature. High temperature will cause the active ingredients in the eye mask to decompose or become invalid, thus affecting the effect. Therefore, it is recommended to store eye masks in a cool, dry place and avoid direct sunlight and high temperature environments.
To summarize, to check the expiration date of Estee Lauder eye mask, you can confirm it through the label on the product packaging. You can also pay attention to the appearance, smell and discomfort of the product when using it to determine whether it has expired. When storing and using eye masks, pay attention to maintaining a suitable temperature to avoid the impact of high temperature environments on the product. Hope this information will be helpful to you!