Question: what does 2x mean in homeopathy?
Answer: (e.g., Arnica 4X) 1X means the initial dilution of the basic substance from plant, animal or mineral origin. 2X means the dilution contains 1 part of a 1X dilution and 9 parts of diluent. 3X means the dilution contains 1 part of a 2X dilution and 9 parts of diluent, and so forth.