I have a receding hairline. Help?

My Dad has a receding hairline and has no big deal with it since--well, since hes old. I'm starting to develop it and hate the fact that I'll probably lose my hair by the time I'm thirty. I don't want to lose it and I've been trying to find products or solutions to keep it at bay for good. Are there any products that can deliver that promise, if so PLEASE tell me!