The next time your grandparents tell you to shave , don't listen to them. They may have a hidden agenda! Beards can help protect skin from sun damage . Though the degree of protection may depend on hair density and thickness (the thicker, the better). “You're going to have some protection because hair is a reflective medium,” says Dr. Arthur Perry, M.D., a dermatological surgeon with Barnes-Jewish Hospital and Washington University School of Medicine in St. Louis. Buy beard oil in Pakistan.