Beards and mustaches are popular facial hair styles for men. Different lengths and thickness fit different facial shapes. A common frustration among many men is a lack of thickness in their beard or mustache. One popular way to make facial hair appear thicker is to fill in a beard or mustache with a woman's lip liner or an eyebrow pencil. However, there are a few tricks that will need to be followed to ensure that this tip is carried out properly.

Match the mustache or beard to the closest color lip liner or mascara. Using the wrong color can make the added makeup more obvious. It's important to match the color not only to your hair, but also to your skin as well.

Wash and dry your face before applying the lip liner to your beard or mustache. Having your face clean will free it of any debris, such as food particles. Keeping your face dry will allow the lip liner or eyebrow pencil to remain as a filler in the mustache or beard without running off as a weak residue.

Fill in the beard or mustache with a small amount of the lip liner while using a mirror. Using too much lip liner will make the beard or mustache look fake, and will counteract the overall attempt to make it look real and thick. If you have to use large amounts of lip liner to increase the fullness of the beard or mustache, then there may not be enough hair to work with yet.