Wilhelm Heinrich Schüßler (also spelled Schuessler; 21 August 1821 – 30 March 1898) was a German medical doctor in Oldenburg who searched for natural remedies and published the results of his experiments in a German homeopathic journal in March 1873, leading to a list of 12 so-called "biochemic cell salts" that remain popular in alternative medicine.

Samuel Hahnemann had proposed homeopathy in 1796, based on the idea of using very dilute remedies including salts.

An 1832 paper in Stapf's Archiv suggested such salts would be "essential component parts of the human body".

Serious discussion began only after Dr Lorbacher of Leipzig critically considered his ideas five months later.

[3] Around the beginning of the twentieth century, Eli Jones and other doctors studied Schüßler's ideas and derived new ones;[4] by the end of that century Schüßler's name (in various forms of spelling) and list of twelve "tissue salts" were commonly found in health shops and alternative medicine books.