OK Ladies..I've tried other "highend" serums,&ended up with a greasy mess that doesn't absorb or work. This stuff WORKS! It is non-greasy, penetrates right into skin, & doesn't leave you with that oily feeling.I am 45 with fine lines, and this has softened them,& they appear less deep after 3 weeks 2xday use along with the Super Mel C line.Keeps breakouts at bay too!I'll never use anything else but Serious Skin Care!