What It Is: The Celimax Vita-A Retinol & Retinal Duo pairs a daily serum with a concentrated booster to help improve skin texture, refine the look of pores, and promote a smoother, firmer-looking complexion. Featuring both Retinol and Retinal, this skincare set supports a more radiant, glass skin-inspired appearance. Product Size: Celimax Vita-A Retinol Shot Tightening Serum 30ml x 1 Celimax Vita-A Retinal Shot Tightening Booster 15ml x 1 Made In: South Korea