Hi there ~
Vitamin B6 may help prevent hair loss. However there are a lot of other factors that can lead to hair loss and this might include other vitamin and micronutrient
deficiencies. I hope you are on multivitamins and multiminerals and specific agents for hair growth. Minoxidil
may also be helpful in preventing hair loss and you need to see a dermatologist
to get a prescription for the same. I hope this helped. Take care and have a lovely day!