save yourself some trouble and do not try to just pick one or two vitamins and add them
Believe me when I tell you that I experimented for years and years and used vitamins ONLY, no DHT blockers, And i know what works, This was trial and error, and lot of tears and lost hair in the process
I take the super hair vitamins for a number of reasons, I used to go out and buy a bunch of bottles of vitamins, and It cost me a lot of money and i took a huge handful of pills
2 maxi hairs per day, does me more good than 20 pills in my hand, one by one
you cannot buy timed released Biotin, separately, and I am a firm believer in Timed release, The Maxi hair have 2000mcg timed released biotin, I get more results from these than If i take half a bottle of non timed released biotin, I experimented with this for years. They also have Horsetail, and MSM, and tons of other stuff you need for your hair. If you go out and buy this separately it would cost you 50 dollars for the same thing Maxi hair gives you for 7 dollars.
Make it easier on yourself, and your wallet , if you are in the USA and just go buy 60 count Maxi Hair it is about 7.99. It works 1000 times better on your hair than any other substitute you can come up with on your own
however I will say that the good vits minerals are only a portion of what you need
if you do not address DHT and the vitamins do not do this,the DHT blockers do
if you do not take the dht blockers the vitamins and minerals will eventually cease to be of benefit and the hair follicles will slowly die due to DHT buildup, so you must have a comprehensive program