SBL Calcarea Sulphuricum-30X is a homeopathic remedy that is made from calcium sulfate. It is used to treat a range of conditions, including skin conditions like acne and eczema, as well as respiratory problems like bronchitis and sinusitis. It is also helpful in treating joint pain and stiffness, as well as digestive issues like diarrhea and constipation. This remedy is safe and natural, and can be taken by people of all ages. It is available in a convenient 30X potency for easy use.