DO NOT trim/shape your beard prior to the three-week mark. I recommend waiting at least four weeks before shaping. If you trim too soon, your beard could become lopsided. ... When first growing a beard I let it creep half way down my neck and then draw the line.

Should you shape your beard as it grows?

When you start growing a beard, you might have to suffer through a few awkward stages in order to get a desired look. (Especially if the beard isn't as thick as you'd like.) But once it coats your face and starts growing bulky, you need to trim the hedges a bit. Even if you're growing it out.

How is a beard supposed to be shaped?

For rectangular, oblong, and triangular faces — where the height is greater than the width, or where the cheeks angle sharply toward the chin — grow the beard shorter on the bottom but fuller on the sides. You want to round out the sides and give some width to your head.