Is it true that Tu Lei endorsed Yu Meiren's black hair?

Tu Lei's endorsement of Yu Meiren's black hair is true. According to the relevant public information, Yu Meiren has black hair. Yu Meiren Heifa Ointment is a hair care product with the function of blackening hair, which is similar to conditioner. It can make hair smooth and shiny, supplement hair nutrition, and gradually darken hair, which is healthier than ordinary hair dyes. Black-haired milk is a nutrient extracted from plants, which uses photosynthesis to stimulate melanin in hair follicles by caring for the hair, so that the hair naturally turns black, instead of dyeing the hair with the pigment of hair dye.