Amulet of chemistry

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.

Profit

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. (186)

You can see current single dose values for comparison here:

Single Dose Potions	GE Value
Attack potion(1)	3
Antipoison(1)	68
Relicym's balm(1)	234
Strength potion(1)	59
Serum 207 (1)	2
Compost potion(1)	171
Restore potion(1)	32
Guthix balance (1)	235
Energy potion(1)	125
Defence potion(1)	150
Agility potion(1)	194
Combat potion(1)	253
Prayer potion(1)	2,525
Super attack(1)	69
Superantipoison(1)	86
Fishing potion(1)	64
Super energy(1)	523
Hunter potion(1)	925
Super strength(1)	334
Super restore(1)	2,625
Super defence(1)	184
Antidote+(1)	827
Antifire potion(1)	51
Ranging potion(1)	232
Magic potion(1)	45
Stamina potion(1)	1,317
Zamorak brew(1)	1,268
Antidote++(1)	126
Bastion potion(1)	1,258
Battlemage potion(1)	1,147
Saradomin brew(1)	840
Extended antifire(1)	180
Anti-venom(1)	724
Extended super antifire(1)	2,610