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. (201.4)

You can see current single dose values for comparison here:

Single Dose Potions	GE Value
Attack potion(1)	2
Antipoison(1)	62
Relicym's balm(1)	249
Strength potion(1)	85
Serum 207 (1)	1
Compost potion(1)	139
Restore potion(1)	32
Guthix balance (1)	236
Energy potion(1)	100
Defence potion(1)	122
Agility potion(1)	144
Combat potion(1)	159
Prayer potion(1)	3,497
Super attack(1)	54
Superantipoison(1)	62
Fishing potion(1)	58
Super energy(1)	625
Hunter potion(1)	1,068
Super strength(1)	415
Super restore(1)	3,529
Super defence(1)	151
Antidote+(1)	722
Antifire potion(1)	74
Ranging potion(1)	158
Magic potion(1)	41
Stamina potion(1)	1,540
Zamorak brew(1)	1,197
Antidote++(1)	166
Bastion potion(1)	1,367
Battlemage potion(1)	936
Saradomin brew(1)	1,489
Extended antifire(1)	99
Anti-venom(1)	990
Extended super antifire(1)	3,282