Houttuynia Cordata Extract (anti-inflammatory, antioxidant, and antibacterial) and Melaleuca Alternifolia (Tea Tree) Extract (soothing, antimicrobial, purifying and antiseptic) as the top 2 ingredients on the list, you are getting the most out of this. The serum has a lightweight, slightly gel-like texture that absorbs fairly quickly into the skin. It's not overly runny, which makes application a breeze. I used this serum when I my skin was red and felt really irritated after being out and about all day. As both key ingredients are both tried and true, my skin immediately felt soothed after application. A no fuss serum that works as it claims.