The homeopathic remedy is made from plumbago or black lead, a mixture of carbon, iron and silica. At one time black lead was used to treat cold sores.
Elderly women who are overweight, constipated, chilly and rather melancholy respond well to Graphites. So do coarse-featured, dark-haired individuals with earthy complexions. The Graphites type often does hard manual work in the open air or drives heavy goods vehicles.