IPSA Serum 0 e (50mL / Refill 50mL) A serum that leads to smooth, clean, and clear skin with no visible pores. This fresh and invigorating serum penetrates to the very core of the skin to treat irritation and tighten the skin around the cheeks and face line. ■How to use Apply to cleansed skin. Apply approximately 3 times the amount from the dispenser to palm of hand and spread over entire face with fingertips. If you are concerned with visible pores, we recommend massaging the product into the skin from the bottom to the top. For best results, apply by massaging in.