Essential oils are an item required to upgrade the base camp spa to tier 3. They are rarely found while traversing the Anachronia agility course. Players have a 1/1800 chance to obtain the essential oils per obstacle on the agility course. Players may only traverse a single obstacle once per lap to roll for the oils, resulting in 52 rolls per lap (coinciding with the amount of obstacles on the course) for a player with at least level 85 agility. This gives players an approximately 1/35.1 (2.8483%) chance of acquiring the oils per lap. Players will not receive more than 1 roll per obstacle by clicking it repeatedly until they have completed that section of the agility course.
To upgrade the spa, speak with Giles after the essential oils have been obtained and the required resources have been gathered. The town hall tier 3 and storehouse tier 3 must be built first.
Investigating the item yields the message "This looks very rare. This can be used to upgrade the spa to tier 3 at the base camp."
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- ^ There is further information on this drop; see the associated page for details.
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- In real life, essential oils (so named because they contain the "essence" of plants) are used in aromatherapy.
- ^ Jagex. Mod Daze's Twitter account. 19 September 2019. (Archived from the original on 19 September 2019.) Mod Daze: "Seen this asked a few times: to get essential oils you have a chance per obstacle per lap. Important point - if you repeat the same obstacle over and over you will NOT have a chance to get the oils. This is the same rule for codex pages."