Chart: Understanding homeopathic dosages

Roman Numeral Notation

Dilution Rate

Example

x

1:10, or the number of times a solution is diluted with nine parts dilutant*

6x: The substance was diluted with nine parts dilutant and repeated six times.

c

1:100, or the number of times a solution is diluted with 99 parts dilutant

30c: The substance was diluted with 99 parts dilutant and repeated 30 times.

m

1:1,000, or the number of times a solution is diluted with 999 parts dilutant

30m: The substance was diluted with 999 parts dilutant and repeated 30 times.

lm

1:50,000, or the number of times a solution is diluted with 49,999 parts dilutant

9lm: The substance was diluted with 49,999 parts dilutant and repeated nine times.