A lot of times, men grow their beard in order to look manly. The amount of time needed for it to grow differs from one case to the next. Work and social interactions require them that they have it trimmed. Over the years, a lot of beard products are being sold for men. Aside from the shampoos, you also have to make sure that you trim your hair. One of the biggest mistakes that you can make if you are trying to grow your beard is to make use of an electric shaver.
You can simple cut the beard too much. Instead, what you want to do is to stick to scissors. You also need to use a comb to make sure that you are just cutting the right amount of beard. It takes a bit of practice but you will most likely end up with a well-sculpted beard. If you are not yet confident about your trimming skills, better to go to a barber.