Abramelin oil, anointing oil mentioned within the book; popular in the 20th century largely due to occultists Samuel Mathers and Aleister Crowley
Abramelin oil became popular in the Western esoteric tradition in the 20th century after the publication of the S. L. MacGregor Mathers English translation of the Book of Abramelin, and especially via Aleister Crowley, who used a similar version of the oil in his system of Magick.
A paperback reprint during the renewed rise of interest in hermeticism during the 1970s placed the book before a new generation of readers, and one offshoot of this was that a number of people, both within and without the Thelemic and Golden Dawn communities, claimed to have either undertaken the Abramelin operation in toto or to have successfully experimented with the magic squares and Abramelin oil formula found in the text.