Men (and women if you know), what is the best hair regrowth product for men? (that actually works)?

My husband is going bald from the back and has receeding hair line. If you can give name, price and where I can purchase it.Men (and women if you know), what is the best hair regrowth product for men? (that actually works)?
Balding is in the genes. There is nothing that can bring back a full head of hair. My husband just shaved his head and now he looks sexier than ever.Men (and women if you know), what is the best hair regrowth product for men? (that actually works)?
rogaine probably at a general store