1 doctor weighed in:

How quickly does hair grow back on an 18-year-old after a head shave?

1 doctor weighed in
Dr. James Ferguson
Pediatrics

In brief: A while

Under normal circumstances the hair will grow about 1/2 inch per month.
Poor nutrition or toxic exposures may retard the process.

In brief: A while

Under normal circumstances the hair will grow about 1/2 inch per month.
Poor nutrition or toxic exposures may retard the process.
Dr. James Ferguson
Dr. James Ferguson
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