What do the number/letter combinations (6X, 30C, 1M, etc.) mean on the homeopathic products?
In the USA, these number/letter combinations are used to indicate the potency of the product. The number indicates how many times the solution has been diluted. The letter is a roman numeral, (X=10, C=100, M=1,000), and refers to the proportion of the dilution (1/10, 1/100, etc.). Generally, acute, localized symptoms are treated with low numbers such as 6C. The 30C potencies are most common, and used for first aid, seasonal ailments, and chronic health concerns. Potencies of 200 or higher are often only used when recommended by a qualified homeopath. …
