Haarlem oil

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Haarlem oil in 2013
Old german advertisement for Haarlem oil as cure for stomach, gut, liver and bile sickness.

Haarlem oil (Dutch: haarlemmerolie), also called medicamentum gratia probatum, is a dietary supplement. The potion is a mixture of sulfur,[1] herbs and terebinth oil.[2] It is produced in Haarlem, Netherlands.

It was invented in 1696 by Claes Tilly and was marketed as a cure for many ailments.[3][4]

The word haarlemmerolie (with a lowercase 'h') is now used in Dutch to indicate a fix for all problems. For example: "lowering taxes will be like haarlemmerolie for the economy". This is also used sarcastically.[citation needed]

Benefits to race horses -[5]

- Greatly improves the urinary system and removes most toxins in the horse's system.

- Haarlem oil guarantees against infections, such as respiratory, urinary, biliary, and intestinal.

- Naturally stimulates the horse's own hormone secretions without side effects.

- Helps assist the rapid recovery process after the horse competes.

- Fights any and all arthritic actions.


  1. ^ "A sulfur molecule to block the coronavirus". November 18, 2020. Retrieved April 30, 2023.
  2. ^ Mercier B, Prost J, Prost M. (2009). "Haarlem oil". The essential oil of turpentine and its major volatile fraction (alpha- and beta-pinenes): a review. Vol. 22. pp. 331–342. doi:10.2478/v10001-009-0032-5. PMID 20197260. {{cite book}}: |journal= ignored (help)CS1 maint: multiple names: authors list (link)
  3. ^ North, Samuel (1830). "Haarlem oil". The family physician and guide to health, together with some remarks on surgery. Waterloo, NY: Wm. Child. pp. 303–304.
  4. ^ "Conclusion of Dr. Kiener about Haarlem Oil". Haarlem Oil | Haarlem Oil For Horses. Retrieved 2019-07-21.
  5. ^ "Special Horses | Haarlem-oil.com". Haarlem Oil | Haarlem Oil For Horses. Retrieved 2019-08-04.

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