These are becoming well accepted and are relatively inexpensive. Based on substances that create the same retain as a cure/preventative. Used to be considered esoteric. Some would say, since the active ingredient amount is so small, that it works by vibrational equivalence. A remnant of alchemy (spygyric), this system of remedies works in very much the same way my waters work.
"The essential nature of the remedial powers of a homeopathic remedy are similar to the diseases they will cure. Since ancient times there has been knowledge of Similibus Curentur but the applications of such remedies was often dangerous. For this reason various alchemical processes were used to distill the essence of a medicinal substance while removing toxicity. These alchemical homeopathic remedies were potentized by spygyric methods to bring out their remedies essence.The Great Paracelsus (1493-1541) is the most famous of the alchemical homoeopaths. By introducing the homoeopathic pharmacy Hahnemann found the perfect way to bring our the essential nature (wesen) of the remedy while removing all possibility of toxicity. The homoeopathic pharmaceutical methods are the alchemy of the future." THE PRINCIPLES OF HAHNEMANNIAN HOMOEOPATHY
Homeopathy has forgotten its origins but my waters have not....I include in homeopathic the Bach flower remedies and cell salts as well as the standard HPUS (http://www.hpus.com/).
Psionics/Radionics/Psychotronics could be included here but they properly come under the next heading.*