Alumina is a homeopathic remedy made from aluminum oxide. It is suited for dry, thin individuals with dark complexions who are chilly. Key symptoms include chronic constipation, eructation in the evenings, abnormal food cravings, scanty menstruation, and dry skin with intense itching. Physical symptoms are aggravated in the morning, winter, and during full and new moons and ameliorated in open air, with cold washing, damp weather, and lying down.