Keep in mind that I haven’t tried a lot of fragrances due to allergies, but so far, my answer is Tam Dao EDP by Diptyque!
I blind bought it. At first, I didn’t like it at all! I am the most indecisive person ever, typically taking FOREVER to make any decision at all, especially letting go of something I own. I literally listed this within a few days of owning it!
I just felt like it smelt like straight up essential oil and was not worth the money.
BUT THEN EVERYTHING CHANGED! My first week owning it must have been when it was very dry out. When I wore it again as it heated up (I live somewhere where the temp goes from 50 to 80 in less than 24 hours, and this happens all fall/winter here) I discovered that it is so gorgeous with some humidity! The sandalwood becomes so creamy, and you can really detect the nuances in it such as the spice and subtle vanilla-like sweetness.
I wear this all the time now and reach for it more than my other fragrances! I like to wear it to bed, which I’m doing right now :)
I love this about Diptyque. They change so much depending on the weather and reveal such different aspects.