2 doctors weighed in:
Is taking folic acid and biotin together safe for promoting hair growth?
2 doctors weighed in

Dr. Robert Kwok
Pediatrics
1 doctor agrees
In brief: Safe but not helpful
Unless a person has some serious vitamin deficiency (very unlikely in the U.
S.) taking additional vitamins, folic acid, or biotin at the usual recommended supplement doses will lead to hair growth at about 1mm every couple of days, or about half an inch a month . . . Which is the same hair growth rate as in people not taking extra folate nor extra biotin.

In brief: Safe but not helpful
Unless a person has some serious vitamin deficiency (very unlikely in the U.
S.) taking additional vitamins, folic acid, or biotin at the usual recommended supplement doses will lead to hair growth at about 1mm every couple of days, or about half an inch a month . . . Which is the same hair growth rate as in people not taking extra folate nor extra biotin.
Dr. Robert Kwok
Dr. Robert Kwok
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