Alumina is a homeopathic remedy made from aluminum oxide. It is suited for people who are chilly, dry, thin, and have a dark complexion. Key symptoms include chronic constipation, dry skin that cracks and itches intensely, and mental exhaustion after menstruation for women. Pain symptoms include a sensation of hot iron penetrating the arms and fingers. Aggravations include waking in the morning and during full or new moons, while ameliorations include being in open air, cold washing, damp weather, and lying down.