It is true that the developed ancient black hair can improve the scalp environment, repair the nutrient supply of hair follicles, adjust the scalp balance, rebuild the scalp barrier, and supplement the nutrients and trace elements needed for melanin synthesis in hair. I often stay up late because of the pressure of work. One day, I suddenly found white hair on my head, which is premature aging. Now I can't think of how much improvement I have made after using this product. The white hair on my head has gradually turned black, and my hair is soft and shiny, and my hair is healthier than before.