As moisture essence, this Aprilskin calendula essence works well enough. It provides hydration to the skin, but not a significant level, and definitely not as well as the Pyunkang Yul Moisture ampoule. However I really do love this product. It comes in a cute little yellow bottle with a dropper and there are real calendula petals floating in the essence which melts into your skin when applied. The texture of this essence is also really nice. It doesn't leave behind any stickiness and it has such a lovely scent. I actually use this when I feel like giving myself a little bit of pampering.