-product  Luthione Derma Boost PDRN Ampoule 5 Weeks Program 5ml*5Vial + MTS Roller -why this item?   -specification and precautions once a week Remove elasticity, glow, and gimmy blemishes 1bottls 420000ppm pdrn 100000ppm glutathione 120000ppm vitamin c 100000ppm niacin 20000ppmm etc Maximum content of pdrn ph 4.5 ampoule made in Korea