Introduction
Potency in homeopathy refers to the strength of a remedy as determined by the process of dynamization — serial dilution and succussion. The paradox of homeopathy is that the higher the potency (more dilute), the stronger and deeper the action of the remedy.
Potency Scales
The centesimal scale (C) is the standard, with one in one hundred dilution at each step with succussion. The decimal scale (X or D) uses one in ten dilution. The fifty-millesimal scale (LM or Q) uses a more complex preparation method with a one in fifty thousand dilution factor.
Selection of Potency
Low potencies are used for local symptoms and physical conditions. Medium potencies are used for general conditions involving multiple systems. High potencies are used for deep constitutional conditions and mental/emotional states. LM potencies can be used for sensitive patients and chronic conditions.
Conclusion
Potency in homeopathy refers to the degree of dynamization of a remedy, with higher potencies having deeper and more prolonged action.