Scroll of cleansing



The Scroll of cleansing is a Dungeoneering reward, and can be purchased for 20,000 Dungeoneering reward tokens. It requires a Herblore level of 49 and a Dungeoneering level of 49, and is a members only item. Once used, the scroll will disappear, giving the following permanent effects:
 * You receive a 1 in 8 chance that you make a potion twice as fast as usual.
 * A 1 in 10 chance that adding an ingredient to a vial of water, coconut milk or unfinished potion will not actually use the ingredient. (The ingredient will not disappear from your inventory, leaving you with extras.)
 * This Scroll can reduce the cost of secondary ingredients by up to 10% and thus is valuable to those seeking higher levels of herblore.

Trivia

 * The scroll saves an average of 2 herbs when making an inventory of 14 unfinished pots (saves 1/7 of herbs). This is not mentioned but many people make unfinished pots as a way to make money making up to 2m an hour but gaining no experience.
 * Currently, players making certain potions do not experience the effect from this scroll. It has been stated that this will be changed in a future update. On 1 February 2011 Jagex has introduced a patch to fix some of the potions. Potions that used to save the unfinished pot instead of the secondary now save the secondary. Some of these potions may be still affected:
 * Guthix balance
 * Goblin potion
 * Fletching potion
 * Weapon poison
 * Antipoison+
 * Antipoison++ (Both finished and unfinished)
 * Weapon poison+ (Both finished and unfinished)
 * Weapon poison++ (Both finished and unfinished)
 * Extreme magic (now saves mud runes)
 * Serum 207
 * Magic essence potion
 * Sanfew serum
 * Super prayer (saves nothing)
 * Magic potion (now saves potato cacti)
 * Teas, ammunition for Salamanders and Barbarian mix potions will never be affected by this scroll.
 * On the in-game Dungeoneering rewards guide, it is labeled by its original concept name, "Wasteless herblore".
 * In the Herblore guide under "Other", it misspells it as "Wastless Herblore".
 * When a player buys this scroll from the Rewards Trader, it will appear on their Adventurer's log.
 * There was a bug where secondaries for Juju potions were not saved when mixing them with unfinished potions. This has been fixed.