The Memory of Water: an overview

Homeopathy. 2007 Jul;96(3):143-50. doi: 10.1016/j.homp.2007.05.006.


The 'memory of water' is a concept by which the properties of an aqueous preparation are held to depend on the previous history of the sample. Although associated with the mechanism of homeopathy, this association may mislead. There is strong evidence concerning many ways in which the mechanism of this 'memory' may come about. There are also mechanisms by which such solutions may possess effects on biological systems which substantially differ from plain water. This paper examines the evidence.

Publication types

  • Review

MeSH terms

  • Biomedical Research*
  • Evidence-Based Medicine*
  • Homeopathy / methods*
  • Humans
  • Indicator Dilution Techniques
  • Luminescent Measurements / methods
  • Materia Medica / chemistry
  • Photons
  • Solutions / chemistry*
  • Water / chemistry


  • Materia Medica
  • Solutions
  • Water