i received the serum as part of the cream i bought in the gift pack. i struggle with dry skin mostly in winter so i use Hydra Quench in winter and Multi Active in summer. i only use the serum at night before the night cream and its great - my skin feels soft and moisturized but i wake up in the morning with an oily nose and chin. its a lovely serum and smooths on well and seeps into the skin really fast. my skin does feel a bit tight after i have smoothed it in but i follow with the night cream. personally i started loving the double serum much more.