My six year old daugher got her hair 12" cut off by her friend without her realising. Her hair was styled in cornrows, so we had to literally shave it off, she was virtualy bald.This all happened a month ago. SHe has about 1/4 " of new growth. Needless to say she was traumatised by the incident and has affected her self esteem. I told her by eating her veggies her will grow her hair back. One month later she expects her hair to be the lenght it was. My question is how safe are vitamins like msm and biotin to use on kids , is it advisable at all.