Since the beginning of time men have tried every imaginable herb, remidy, medicine, animal part etc..
An no results to date..
It all comes down to genetics, your stuck with what you were born with..
Dont waste your money, personally I like/love the man I am being intimate with, penis size has never been an issue..
Big is fun to look at, and that's about it..
If anything an average or small is a lot more fun to play with.