The serum is transparent, slightly thick in constituency since it contains hyaluronic acid. I've sensitive acne prone & oily skin. Initially when applied on face, it gave me a tingling sensation, itchiness and later it got better after followed by a moisturiser. Everything is fine about the serum except for the fragrance. It smells like fevicol when applied on face though it fades after some time. It would be great if they get rid of the weird smell from the exfoliating serum.