People say that it doesn't matter if a man goes bald, but it matters to him. That's why so many men fall for the spurious adverts for products that purport to grow hair. Hair is a key factor in one's psychology and I'd be distraught if I lost mine, so I take care of it like a maniac. I'd be terrified if my hair started to fall out so I understand why men want to come and see me if they've got some hair loss.
I'm not a miracle worker and I can't make someone's hair grow back, but I can keep what hair they've got, and I can make what they've got look better. The least I can do is to slow down hair loss considerably, and the best I can do is maintain the quantity. There are things that will make your hair grow again, but the side effects are ridiculous, they're dangerous, and you get a loss of libido.
I put people on a programme according to the needs of their hair, and men usually do what I ask them to do because they don't want to lose their hair. But there's no magic, you have to eat better, take the supplements and follow the programme - it's the whole caboodle that helps.