Old School RuneScape Wiki
Old School RuneScape Wiki

Amulet of chemistry detail.png

An amulet of chemistry is a jade amulet enchanted via the Lvl-2 Enchant spell.

When equipped, there is a 5% chance to give you an extra dose when brewing potions. The amulet will provide five charges before disappearing.

As of an update on 27 July 2017, players can right-click Options on the amulet to toggle whether they would like to stop making potions when the amulet breaks.


When using the amulet for solely profit, it should only be used when a single dose of the potion you make has a value of more than 1/5th of the amulet's worth. (190.2)

You can see current single dose values for comparison here:

Single Dose Potions GE Value
Attack potion(1).png Attack potion(1) 2
Antipoison(1).png Antipoison(1) 58
Relicym's balm(1).png Relicym's balm(1) 151
Strength potion(1).png Strength potion(1) 57
Serum 207 (1).png Serum 207 (1) 1
Compost potion(1).png Compost potion(1) 124
Restore potion(1).png Restore potion(1) 35
Guthix balance (1).png Guthix balance (1) 254
Energy potion(1).png Energy potion(1) 111
Defence potion(1).png Defence potion(1) 107
Agility potion(1).png Agility potion(1) 148
Combat potion(1).png Combat potion(1) 84
Prayer potion(1).png Prayer potion(1) 2,458
Super attack(1).png Super attack(1) 43
Superantipoison(1).png Superantipoison(1) 71
Fishing potion(1).png Fishing potion(1) 52
Super energy(1).png Super energy(1) 524
Hunter potion(1).png Hunter potion(1) 1,185
Super strength(1).png Super strength(1) 376
Super restore(1).png Super restore(1) 2,523
Super defence(1).png Super defence(1) 160
Antidote+(1).png Antidote+(1) 661
Antifire potion(1).png Antifire potion(1) 54
Ranging potion(1).png Ranging potion(1) 197
Magic potion(1).png Magic potion(1) 46
Stamina potion(1).png Stamina potion(1) 1,719
Zamorak brew(1).png Zamorak brew(1) 976
Antidote++(1).png Antidote++(1) 284
Bastion potion(1).png Bastion potion(1) 2,185
Battlemage potion(1).png Battlemage potion(1) 1,481
Saradomin brew(1).png Saradomin brew(1) 1,282
Extended antifire(1).png Extended antifire(1) 220
Anti-venom(1).png Anti-venom(1) 1,155
Extended super antifire(1).png Extended super antifire(1) 2,918