Amulet of chemistry

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Amulet of chemistry detail.png

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

Each amulet begins with five charges. While the amulet is equipped, there is a 5% chance that you will create a 4-dose potion rather than a 3-dose potion when brewing potions (but with no extra experience), which consumes one charge. Once all of the amulet's charges are used up, the amulet crumbles to dust.

Similar to a ring of recoil, amulet of chemistry charges are stored per player, not per amulet. Thus if the player gets rid of an amulet with 1 charge remaining, the next amulet the player equips will still have only 1 charge. The player can right-click and "break" an amulet of chemistry, destroying it and restoring the next amulet of chemistry the player equips to 5 charges.

Creation[edit | edit source]

Requirements
SkillLevelXP
Magic Magic27 (b)37
Members
Member icon.png
Ticks1 (0.6s) [r 1]
Materials
ItemQuantityCost
Jade amulet.pngJade amulet1805
Cosmic rune.pngCosmic rune1125
Air rune.pngAir rune315
Total Cost945
Amulet of chemistry.pngAmulet of chemistry1978
Profit33
  1. Manual casting is 3 ticks, auto-casting is 7 ticks

Mechanics[edit | edit source]

The amulet of chemistry provides no benefit when making potions that always output 4 doses, including antidote+, antidote++, anti-venom+, super combat potion, and super antifire.

When used with potions that create a variable number of doses, the amulet will only trigger if the input potion is less than 4 doses. These potions include stamina potion, extended antifire, extended super antifire, anti-venom, and all of the divine potions. When used with 3-dose potions, the amulet will extend 60 doses into 61 doses, providing an average 1.66% increase in yield and take 33% longer to make. For 2 dose potions, the amulet will extend 40 doses into 41 doses, providing an average 2.5% increase in yield and take 100% longer to make. For single dose potions, the amulet will extend 20 doses into 21 doses, providing an average 5% increase in yield and take 300% longer to make. This takes much more time, but can be useful extending supplies when acquiring ingredients takes a significant amount of time (such as on Ironmen accounts, or maximising profit from crystal dust).

Profit[edit | edit source]

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 (195.6).

Potion Single dose One dose of (4)[1]
GE Price Profit GE Price Profit
Attack potion.png Attack potion 2 -193.6 1.5 -194.1
Antipoison.png Antipoison 68 -127.6 53.25 -142.35
Relicym's balm.png Relicym's balm 243 47.4 153.75 -41.85
Strength potion.png Strength potion 99 -96.6 91.5 -104.1
Serum 207.png Serum 207 2 -193.6 1.75 -193.85
Compost potion.png Compost potion 82 -113.6 51 -144.6
Restore potion.png Restore potion 29 -166.6 19.75 -175.85
Guthix balance.png Guthix balance 250 54.4 84.5 -111.1
Energy potion.png Energy potion 141 -54.6 171 -24.6
Defence potion.png Defence potion 95 -100.6 85.75 -109.85
Agility potion.png Agility potion 91 -104.6 38.5 -157.1
Combat potion.png Combat potion 123 -72.6 164.25 -31.35
Prayer potion.png Prayer potion 2,134 1,938.4 2,193.25 1,997.65
Super attack.png Super attack 47 -148.6 58.75 -136.85
Superantipoison.png Superantipoison 72 -123.6 56 -139.6
Fishing potion.png Fishing potion 47 -148.6 45.75 -149.85
Super energy.png Super energy 492 296.4 451.25 255.65
Hunter potion.png Hunter potion 1,096 900.4 1,022 826.4
Super strength.png Super strength 400 204.4 440.25 244.65
Super restore.png Super restore 2,659 2,463.4 2,743.25 2,547.65
Super defence.png Super defence 239 43.4 308.25 112.65
Antifire potion.png Antifire potion 53 -142.6 73.25 -122.35
Divine super attack potion.png Divine super attack[2] 328 132.4 338.5 142.9
Divine super strength potion.png Divine super strength[2] 907 711.4 696.75 501.15
Divine super defence potion.png Divine super defence[2] 652 456.4 399 203.4
Ranging potion.png Ranging potion 65 -130.6 56.5 -139.1
Divine ranging potion.png Divine ranging potion[2] 832 636.4 731.5 535.9
Magic potion.png Magic potion 46 -149.6 35.5 -160.1
Divine magic potion.png Divine magic potion[2] 659 463.4 762.25 566.65
Stamina potion.png Stamina potion[2] 1,185 989.4 1,186 990.4
Zamorak brew.png Zamorak brew 707 511.4 494.75 299.15
Bastion potion.png Bastion potion 1,765 1,569.4 1,803.5 1,607.9
Battlemage potion.png Battlemage potion 1,756 1,560.4 1,413 1,217.4
Saradomin brew.png Saradomin brew 1,104 908.4 1,095 899.4
Extended antifire.png Extended antifire[2] 65 -130.6 37.25 -158.35
Anti-venom.png Anti-venom[2] 717 521.4 439.75 244.15
Divine super combat potion.png Divine super combat[2] 4,254 4,058.4 4,109.75 3,914.15
Extended super antifire.png Extended super antifire[2] 2,035 1,839.4 2,182.5 1,986.9
  1. Typically more accurate as they are traded more often.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 These potions require using input with less than 4 doses. See mechanics section above.