Contains Stem Base Alpha, a unique ingredient developed through Obagi’s unique dermatological research. It is refreshing and has excellent penetration, providing moisture deep into the stratum corneum, leading to clear skin with a smooth texture. Deep inside the skin: stratum corneum How to use After washing your face, take an appropriate amount (about the size of a 500 yen coin) onto a cotton pad or the palm of your hand and gently apply to the entire face.