Applying this on top of my moisturizer worked really well. As a "skincare sealer" it's really quite expensive, but my skin has felt better.
This product is really hard to find online, I'm so glad I did. Got 2 bottles at once, and the expiry date was in 2020, which is super long still. Anyway, I like using this because it really helps to make sure my skin absorbs my skincare.