The best skincare product I have ever used

It was the Estée Lauder Advanced Night Repair serum.

At first, I hesitated to buy it because it was too expensive, so I tried other samples with similar ingredients first. However, I had an opportunity to take advantage of duty-free shopping and purchased it at a discount, and I realized it was truly different. That is why I always repurchase and use it now, even though it is a bit pricey. Buying the large size is actually slightly cheaper than the small one. Other products didn't seem to address inner dryness, but this product seems to tackle it deep down as well.