How long does it take to make your hair black?

The hair can turn black after 3-5 months of replenishing qi and blood.

If the patient finds that the blood in the body is insufficient, immediately seek the help of a professional doctor. The basic metabolic rate of the body is relatively high, which is conducive to the circulation of qi and blood in the body and accelerates the metabolism of the hair. At this time, the time required for the hair to turn black is relatively short, generally about 3 months. If the patient does not pay attention to the lack of qi and blood, the basal metabolic rate is relatively low, and the flow of qi and blood in the body is relatively slow, which is not conducive to the metabolism of hair. At this time, the time required for hair to turn black is relatively long, usually about 5 months.