I love the serum it’s definitely lightweight and is packed with lots of vitamin. You can see your skin getting brighter at some point, but I feel like your skin gets used to it (if it makes sense?) I feel like this is a serum that would be better during fall when my skin is a bit drier.l feel like during the summer when we have humid days, it can get sticky and I feel uncomfortable during the day. I will update my use during fall time.