Sold out. Danao skin microenvironment regeneration liquid series products contain extremely precious active substances needed for the growth of skin stem cells. This active substance was extracted by Dr. Wu Yaojiong, a professor in Tsinghua University, in famous universities such as North America after more than 10 years of research and using proprietary technology. It has the magical effect of anti-aging and skin rejuvenation. According to the information, the poem Danao was taken off the shelf because it was sold out.