Start the penetration of beauty ingredients deep into the stratum corneum. Let’s start performing penetration-type skin care based on your skin type and concerns. The theme of the Spa treatment eX series is twofold; penetration and retention. This treatment delivers selected ingredients deep into the stratum corneum without leaving anything on the skin surface. This dark spot remover for face is a special skincare lineup that is highly recommended for people with busy, on-the-go lifestyles.