Tracidaxel is just a health product that may have some secondary effects, but health products are not medications and do not have the therapeutic effects of medications. Tretinoin cannot be used to treat gray hair. The treatment of gray hair requires adjustments in work and rest, daily care and so on. It is important to develop good living habits, avoid staying up late, have a regular routine, go to bed early and get up early. In daily life, you should choose regular shampoo, avoid using poor quality washing and care products, so as not to damage the hair follicles. Dietary regulation: consume more black sesame, black beans and other grains and cereals, may have a supplementary effect on delaying gray hair. Treatment of gray hair is recommended to timely visit a regular hospital, a clear diagnosis, treatment under the guidance of the doctor, do not blindly use some health care products, so as not to delay the condition.