Homeopathic arnica is usually diluted 10–30 times and uses the labels “C” for centesimal (more diluted) or “D” for decimal dilutions (less diluted). For example, a C10 and D10 dilution ...

Continual aggressive dilution removes the molecules of interest to the point that they quantum-probabilistically shine in absentia. Homeopathy, in other words, is not even snake oil.

Grey Matters: Be wary of buying into some homeopathic claims By Postmedia News Published Apr 09, 2018 Last updated Apr 10, 2018 ...

Homeopathy is a practice based on the idea that “like cures like.” Followers of this practice believe that extreme dilutions (by 1031 or more) of a substance that would normally cause illness will ...

Most homeopathic remedies are available at a maximum concentration (or minimal dilution) of 6X. A remedy at this concentration contains only about 1 microgram of active ingredient.

From here. A popular homeopathic treatment for the flu is a 200C dilution of duck liver, marketed under the name Oscillococcinum.