What is best way to prevent hair loss in men ..................?

Stick rotten eggs in it and keep it in for three months, then wash off with olive oil only. Repeat 6 times in a row, it works!

I'm not entirely certain that you can..you might try Rogaine or something..but that doesn't really stop it.

if you are asking about male pattern baldness then the two best proven drugs are Rogaine and Propecia but they do not work for everyone. Rogaine is often causing dandruff (which may require you start using some anti-dandruff shampoo such as Nizoral) and Propecia is often blamed for its negative side-effects. Minoxidil is a generic name for Rogaine and finasteride for Propecia

stick egg to ur hair in alternate days and stop using gel and dandruff shampoos

What about Rogaine?

I have heard that for some men a hormone imbalance could be causing early loss of hair but not for most. My husband started losing his hair, just like his father, since the age of 16, before I met him. He just accepted it and I never knew any different about him. It's only hair after all. He still has most of his hair around the sides and he's still the wonderful person I fell in love with.