What is the difference between Cerise Naturals anti hair grey serum Reverse Hair Serum Grey from other products? Cerise Naturals anti hair grey serum Reverse Hair Serum distinguishes itself from other products by utilizing a unique blend of natural ingredients, including rosemary essential oil, black tea extract, and other botanicals, believed to promote hair health and potentially slow down the graying process. The serum aims to nourish the scalp, stimulate hair follicles, and improve circulation, which may help maintain hair color and vitality. However, it's essential to note that while users may experience benefits such as improved hair texture and shine, scientific evidence specifically supporting its ability to reverse grey hair is limited.