The mechanism of action of homeopathy has been the subject of basic research experiments carried out by biologists, physicists and chemists. Several groups in physics, biology and immunology have shown consistent effect of high dilutions.

Basic science research in homeopathy has been conducted in two main areas:

(1) in-vitro or in-vivo biological models of the action of ultra-molecular dilutions and their potential mechanisms of action, including the similia principle (the concept of treating like with like);

More about biological models…

(2) physical research on ultra-molecular dilutions.

More about physical models…

The Homeopathy Basic Research Experiments (‘HomBRex’) Database, a comprehensive database of basic research in homeopathy, contains information on experiments on biological systems in-vivo and in-vitro, in healthy or diseased states, ranging from the intact organism to the subcellular level, with measures of effect ranging from viability to molecular processes; and research on physico-chemical effects of serially agitated homeopathic preparations.

About 100 researchers from different universities and institutes in Europe are working in this domain and are members of the GIRI = Groupe Internationale de Recherches Infinitisimales = International group of researchers studying the effects of serially agitated high dilutions.