Will biotin increase facial hair? While data on beard growth in particular is limited, several studies suggest that biotin supplements can improve hair thickness in people with conditions affecting hair growth, such as alopecia, though beard hair is not specifically mentioned ( 1 , 5 ).
What vitamins help mustache grow? Evidence indicates that vitamins A, C, and E. As well as certain B vitamins help to prevent loss of hair and promote beard growth.
How can I increase my mustache growth? 10 Tips to Grow a Long Beard and Moustache