If you use regular shampoo on your facial hair, it will take away the much-needed natural oils and leave you with dry, flaky facial hair. The roots of your facial hair will also become weaker and cause hair loss. This will eventually give birth to a patchy beard if you persistently keep applying regular shampoo instead of beard wash. Using beard wash deeply cleanses your beard and the skin under the beard. It removes dirt, unclogs beard follicles, and also adds nourishment to your beard with a shine and lustrous effect.