Elaine Alexander, the late Canadian health researcher and radio producer/broadcaster, collaborated exclusively with Flora to produce Flor-Essence®. This purification tea was entrusted to Elaine by Dr. Charles Brusch, M.D., personal physician to the late President John F. Kennedy. Dr. Brusch was a partner in research and co-owner with the famous Canadian nurse Rene Caisse in perfecting this formula at his Cambridge, Massachusetts clinic. Flor-Essence liquid gently flushes toxic residue from the kidneys, liver, lungs, colon, bloodstream, and deepest cells.* Flor-Essence is the only production the market authorized to carry Elaine's signature on the packaging to vouch for its historical authenticity.