Organika offers activated charcoal powder, as well as  Homeopathic Activated Charcoal Capsules. According to the National Center for Complementary and Integrative Health, “Homeopathy points to two unconventional theories: “like cures like”—the notion that a disease can be cured by a substance that produces similar symptoms in healthy people; and “law of minimum dose”—the notion that the lower the dose of the medication, the greater its effectiveness.”