I'm currently trying to grow a full and long beard, long enough to braid my mustache and parts of the beard. If anything CAN possibly help at all, is keeping the hair healthy. Take fish oil pills. vitamins E and D. Get a brush that has the little circles on the ends of the "teeth" and brush ur face around 30 minutes a day, this will cause a stronger blood flow/circulation and help with hair growth. Wash your beard only every other day or even longer apart, condition it once a week. This should help, though it wont be enough to be alot noticable, maybe 5% extra a month.