Seriously, it's one of the fastest-absorbing serums I've ever tried. It just melts into the skin right away without any stickiness or tacky feeling. Big plus: it layers perfectly under my moisturizer and sunscreen – no pilling whatsoever! My skin is combo/oily and sensitive, especially in the T-zone, and this feels incredibly lightweight and breathable. It doesn't feel heavy or like it's clogging my pores at all, so it's definitely summer-approved! The scent is also a really pleasant surprise! It’s a natural rosemary fragrance – so unique for a serum, and I find it really refreshing. Didn't expect that, but I'm loving it!