I have been taking vitamin B capsules for hair, and it was a friend who advised me to start taking the supplement to prevent hair loss. I am 21, and I am facing excessive hair fall, however, my mom didnât approve of Rogaine for women, and instead asked me to start up some vitamin supplements to prevent hair fall. I wanted to know from some hair expert whether hair loss vitamins are effective over Rogaine, considering my age! I shall be thankful to you for an apt and early response.