This serum concentrate is liquid gold. I use it daily, usually during the day as I have a night time serum. Despite being a concentrate, it melts right into your skin, absorbs so quickly and leaves it feeling dewy but not oily, perfect for layering. It's also gentle enough to use a few days after microneedling and this is important to me as I have sensitive skin as it is, and having this to help bring down the inflammation and assist the healing process has been a godsend. I've been a Dermalogica fan for years and as I've gotten older my skin has become more sensitive and this range of products is just a lifesaver. It also smells lovely. Absolutely love the whole range.