I wonder what Estee Lauder's demo is?

According to the sample sent by Estee Lauder, I'm sorry I can't tell you directly what it is. Because there is no more background information, such as where you got this sample, or whether there are any signs or instructions on its packaging. I can give you some possible guesses and suggestions

As a well-known beauty brand, Estee Lauder often gives samples to customers. These samples may be one of their most popular products or their new products. Therefore, this sample may be a sample of any of their products.

If you can provide more details or describe the characteristics of this sample, such as its color, texture, smell and so on, then we may be able to judge what it is more accurately.

If you are really interested in this sample and want to know more, I suggest that you can get the answer in the following ways:

Consult Estee Lauder counter: If you get this sample when you buy other products, you can consult the clerk at the local Estee Lauder counter. They are usually happy to help you answer questions about their products.

2. Find it on Estee Lauder official website: Estee Lauder official website generally has detailed product information and instructions. You can try to search related products on the website to see if you can find a description that matches your sample.

3. Ask other people who have used Estee Lauder products: You can ask questions in beauty forums, social media or friends circle to see if others have received similar samples, which can tell you more information.

Although I can't tell you directly what this sample is, I hope the above suggestions can help you. Please feel free to let me know if you have any other questions or need more help.