HP Modifiers

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Below is a comprehensive list of everything in the game that directly affects your maximum HP.

Increasing your (buffed) Muscle also has an effect on your maximum HP, at a base ratio of one HP per Muscle point. This ratio is affected by the Percentage HP Increasers listed below, including the innate +50% for being a muscle class.

For these reasons, you may also be interested in the list of Muscle Modifiers. They are not listed alongside these items due to the variable nature of the Muscle-to-HP ratio. To see various maximum amounts of HP, see Maximizing Your HP.

Absolute Increasers

Absolute increasers increase your HP ceiling by a fixed amount.

Source	Source Type	Incr	Duration	Cost	Prereq	Notes
battered old top-hat	Hat	500	Always		200 Moxie	Muscle +5%
sea salt scrubs	Shirt	400	Always		85 Muscle	Maximum MP +400 Mysticality +15% Requires Torso Awaregness
lawn dart	Weapon (1H)	300	Always		200 Muscle	Muscle +15% Bonus Weapon Damage +20%
nurse's hat	Hat	300	Always		85 Moxie	Regenerate 30-60 HP per adventure Regenerate 10-15 MP per adventure
hopping socks	Accessory	200	Always		200 Mysticality	Slight Slime Resistance Accessory Drops +20% Maximum MP +200 May not equip more than one
Cold Hard Skin	Item	200	10 turns	Item Loss	None	+25 Cold Damage Obtained from frost-rimed seal hide
Digitalis, Dig It	Item	200	10 turns	Item Loss	None	Combat Initiative +75% Obtained from red foxglove
slime-covered necklace	Accessory	200	Always		200 Mysticality	+50 Damage against Slimes All Attributes +6
battered hubcap	Off-Hand Item (Shield)	100	Always		65 Muscle	Muscle +15 So-So Resistance to All Elements Damage Reduction: +14
Fruited	Food	100	50 turns	Item Loss; 1 Full	Level 6	Maximum MP +100
Fruited	Booze	100	100 turns	Item Loss; 2 Drunk	Level 6	Maximum MP +100
sea shawl	Back	100	Always		85 Mys	Mysticality +15% Spell Damage +150% for Underwater opponents only
duct tape buckler	Off-Hand Item (Shield)	65	Always		82 Muscle	Maximum MP +65 Damage Reduction: +12
eelskin shield	Off-Hand Item (Shield)	55	Always		85 Muscle	Maximum MP +55 30-40 Passive Damage when player is hit (underwater adventuring) Damage Reduction: +13
Fishy Fortification	Item	50	5 turns	Item Loss	None	Muscle +10% Obtained from fish-liver oil
guard turtle shell	Hat	50	Always		65 Moxie
six-rainbow shield	Off-Hand Item (Shield)	50	Always		70 Muscle	Damage Reduction: +12 Serious Resistance to All Elements
slime-covered lantern	Off-Hand Item	50	Always		200 Mysticality	Maximum MP +50 So-So Slime Resistance Regenerate 10-15 HP per adventure Regenerate 10-15 MP per adventure
Thick-Skinned	Effect	50	30 turns		None	Obtained from The Mad Tea Party
wonderwall shield	Off-Hand Item (Shield)	50	Always		70 Muscle	Damage Reduction: +12
blackberry combat boots	Accessory	45	Always		75 Muscle	Muscle +10 Bonus Weapon Damage +5 May not equip more than one
bejeweled pledge pin	Accessory	40	Always		70 Mysticality	Part of the Frat Warrior Fatigues May not equip more than one
catskin cap	Hat	40	Always		75 Moxie	Muscle +9
crotchety pants	Pants	40	Always		22 Moxie	Part of the Arrrbor Day Apparrrrrel Allows Put Down Roots combat skill
double-ice britches	Pants	40	Always		20 Moxie	Part of Cold Comforts Stupendous Hot Resistance Damage Reduction +14 Maximum MP +40
reinforced beaded headband	Hat	40	Always		70 Moxie	Part of the War Hippy Fatigues
snarling wolf shield	Off-Hand Item (Shield)	40	Always		42 Muscle	Gives the lupine sword 9 additional Spooky Damage when wielded together Damage Reduction: +7
streetfighting champion's belt	Accessory	40	Always		35 Muscle	Maximum MP +40 Regenerate 6-8 HP per adventure Regenerate 6-8 MP per adventure 3x Critical Hit Chance May not equip more than one
numberwang	Accessory	37	Always		35 Mysticality	+5 Extra PvP Fights +5 Extra Rollover Adventures Monster Level +11 Combat Initiative +23% Maximum MP +37 Regenerate 6-9 HP per adventure Regenerate 6-9 MP per adventure May not equip more than one
astronaut pants	Pants	30	Always		72 Moxie	Maximum MP +30 Muscle +5
black helmet	Hat	30	Always		65 Muscle	Part of the Black Armaments
black kettle drum	Weapon (2H)	30	Always		55 Moxie	Moxie +5 Maximum MP +30
giant cactus quill	Weapon (1H)	30	Always		65 Muscle	3x Critical Hit Chance
palm-frond capris	Pants	30	Always		55 Moxie	Part of the Palmist Paraphernalia Moxie +4 Maximum MP +30 Can break in combat
pilgrim shield	Off-Hand Item (Shield)	30	Always		None	Bonus Weapon Damage +15 +3 Stat Gains from Fights Regenerate 10-12 HP per Adventure Weapon Drops +50% Damage Reduction: +1 per level Cannot equip in Hardcore
red masque	Accessory	30	Always		65 Mysticality	+15 Spooky Damage May not equip more than one
Reptilian Fortitude	TT Buff Skill	30	5-15 turns	10 MP	None
sea cape	Back	30	Always		85 Mox	Maximum MP +30 Moxie +5% Critical Hit Chance +15%, Underwater only Combat Initiative +50%, Underwater only
shiny hood ornament	Accessory	30	Always		80 Mysticality	All Attributes +5 Maximum MP +30 Combat Initiative +10%
stainless steel skullcap	Hat	30	Always		30 Moxie	Damage Absorption +60 Muscle +15% TT's HC reward
tiny plastic Ed the Undying	Accessory	30	Always		10 Mysticality	Damage Absorption +30
turtlemail breeches	Pants	30	Always		25 Moxie	So-So Sleaze Resistance
wumpus-hair sweater	Shirt	30	Always		40 Muscle	Maximum MP +30 All Attributes +3 Requires Torso Awaregness
bejeweled accordion strap	Accessory	25	Always		5 Moxie	Maximum MP +25 Bonus for ATs only
filigreed hamethyst ring	Accessory	25	Always		40 Mysticality	Muscle +12 Regenerate 2-4 HP per Adventure May not equip more than one
hippopotamus kilt	Pants	25	Always		50 Moxie
hippopotamus pants	Pants	25	Always		50 Moxie
hippopotamus skirt	Pants	25	Always		50 Moxie
rusty chain necklace	Accessory	25	Always		75 Mysticality	Muscle +9
sealhide belt	Accessory	25	Always		65 Mysticality	Maximum MP +25
Star of Bravery	Accessory	25	Always		None	Maximum MP +25 May not equip more than one
wreath of laurels	Hat	25	Always		85 Moxie	Muscle +25 Maximum MP +25
ancient stone fist	Weapon (1H)	20	Always		27 Muscle	Damage Reduction +2
big bass drum	Weapon (2H)	20	Always		2 Moxie	Damage Absorption +8
black shield	Off-Hand Item (Shield)	20	Always		65 Muscle	Part of the Black Armaments Muscle +5 Damage Reduction: +10
brainwave-controlled unicorn horn	Hat	20	Always		None	Enables Friendship. And Goring.
copper ha'penny charrrm bracelet	Accessory	20	Always		80 Mysticality	Maximum MP +20
infernal toilet brush	Weapon (1H)	20	Always		35 Muscle	+20 Stench Damage Maximum MP +20 (Bonus for Seal Clubbers only)
ladle of mystery	Accessory	20	Always		5 Mysticality	Maximum MP +20 Bonus for Ss only
Operation Patriot Shield	Off-Hand Item (Shield)	20	Always		None	+3 Stat Gains from Fights Maximum MP +20 Damage Reduction: +1 per level Class-specific enchantments Can be thrown in combat Cannot equip in Hardcore
Power Ballad of the Arrowsmith	AT Buff	20	5-15 turns	5 MP	None	Muscle +10
Puddingskin	Item	20	80 turns	Item Loss	None	Damage Reduction: 5 Obtained from scroll of Puddingskin
Red X Shield	Off-Hand Item (Shield)	20	Always		70 Muscle	Maximum MP +20
Saccharine Maple pendant	Accessory	20	Always		22 Mysticality	Part of the Arrrbor Day Apparrrrrel Maximum MP +20 Allows Spray Sap combat skill
snailmail breeches	Pants	20	Always		67 Moxie	Maximum MP +20 Slight Resistance to All Elements Must be Turtle Tamer class, if in HC
support cummerbund	Accessory	20	Always		35 Mysticality
tambourine	Weapon (1H)	20	Always		10 Moxie	Maximum MP +20
tiny plastic Bugbear Captain	Accessory	20	Always		10 Mysticality	Maximum MP +20 Regenerate 2-4 HP per Adventure Regenerate 2-4 MP per Adventure May not equip more than one
pulled porquoise ring	Accessory	15	Always		40 Mysticality	Moxie +11 Maximum MP +15 Regenerate 1-2 HP per Adventure Regenerate 1-2 MP per Adventure May not equip more than one
safarrri hat	Hat	15	Always		30 Moxie	Bonus Weapon Damage +10 (vs. lions only)
Staff of Blood and Pudding	Weapon (1H)	15	Always		15 Mysticality	Chefstaves can only be equipped with special sauce gloves or Spirit of Rigatoni Spell Damage +25% Regenerate 2-3 MP per Adventure Can be jiggled in combat to steal and restore HP
trousers of the white knight	Pants	15	Always		15 Moxie	All Attributes +3
garish pinky ring	Accessory	10	Always		10 Mysticality	Maximum MP +10
hamethyst ring	Accessory	10	Always		10 Mysticality	Muscle +5 Regenerate 2-4 HP per Adventure May not equip more than one
KoL Con Cinco Piñata Bat	weapon (2H)	10	Always		None	Maximum MP +10 Regenerate 1-3 HP per Adventure Regenerate 1-3 MP per Adventure Cannot equip in Hardcore
linoleum helmet turtle	Hat	10	Always		35 Moxie	Maximum MP +10
pixel pants	Pants	10	Always		10 Moxie	Part of the 8-Bit Finery Maximum MP +10
rave whistle	Weapon (1H)	10	Always		52 Moxie	+10 Monster Level
tiny plastic Queen Bee	Accessory	10	Always
walrus-tusk earring	Accessory	10	Always		10 Mysticality
wax hat	Hat	10	Always		10 Muscle	Part of the Wax Wardrobe Moxie +7
white snakeskin duster	Shirt	10	Always		7 Muscle	Muscle +2 Requires Torso Awaregness
big red clown nose	Accessory	7	Always		10 Mysticality
BRICKO bulwark	Off-Hand Item (Shield)	6	Always		None
blue plastic baby	Accessory	5	Always		None	Maximum MP +5 May not equip more than one
blue ribbon	Accessory	5	Always		None
brown plastic baby	Accessory	5	Always		None	Maximum MP +5
flashing novelty button	Accessory	5	Always		None	Moxie -2
paperclip turban	Hat	5	Always		None	All Attributes +5 Maximum MP +5 Damage Reduction: +5 Part of the Paperclippery outfit
penguin thesaurus	Off-Hand Item	5	Always		None	Mysticality +1 Maximum MP +5
pink plastic baby	Accessory	5	Always		None	Maximum MP +5
porquoise ring	Accessory	5	Always		10 Mysticality	Moxie +5 Maximum MP +5 Regenerate 1-2 HP per Adventure Regenerate 1-2 MP per Adventure May not equip more than one
red plastic baby	Accessory	5	Always		None	Maximum MP +5 May not equip more than one
rose-colored glasses	Accessory	5	Always		None	Maximum MP +5
tiny plastic Boss Bat	Accessory	5	Always		None
KoL Con IV Pole	Off-Hand Item	4	Always		10 Mysticality	Maximum MP +4 All Attributes +4 +4 Hot Damage
Mariachi Mood	AT Non-combat Skill	3	5 turns	1 MP	None	Moxie +1
Patience of the Tortoise	TT Non-combat Skill	4	5 turns	1 MP	None	Muscle +1
Saucemastery	S Non-combat Skill	3	5 turns	1 MP	None	Mysticality +1
tiny plastic mutant elf	Accessory	3	Always		None	Maximum MP +3
oriole-feather headdress	Hat	1	Always		None	Maximum MP +1
whalebone corset	Accessory	-10	Always		12 Mysticality	Damage Reduction: +5 May not equip more than one
Mer-kin gutgirdle	Accessory	-300	Always		85 Moxie	+20 Moxie Stat(s) Per Fight (Underwater Only) May not equip more than one

Percentage Increasers

Percentage increasers boost your HP ceiling based on your base maximum HP. These bonuses stack in an additive manner (NOT multiplicative), and are applied BEFORE any flat bonuses to +HP (as of 25 Jan 2012).

Source	Source Type	% Increase	Duration	Cost
Nigh-Invincible	Pixel star	100%	30 turns	10 yellow pixel and 2 black pixel
Innate Muscle class ability	Seal Clubber and Turtle Tamer only	50%	Always
Song of Starch	Accordion Thief skill	50%	10 turns	100 MP
Spirit of Ravioli	Pastamancer skill	25%	Always	8,000 meat
Abs of Tin	Hodgman's Journal 3: Pumping Tin	10%	Always	N/A
Gnomish Hardigness	Fragnk	5%	Always	5,000 meat
Irrepressible Spunk	Sauceror skill	5%	Always	25,000 meat
Big Boned	Avatar of Boris skill	30%	Always	4 ranks in Feasting.
disco horoscope (Gemini)	Item	100%	10 turns	Item Loss
Rack of dinosaur ribs	Item	50%	30 Turns	Item Loss

Variable Increasers

Source	Source Type	Incr	Duration	Cost	Prereq	Notes
El Vibrato Relics	Outfit	100 per charge	Always		200 Mus 200 Mox	Adds 100 per BUILD charge (up to ten)
A Few Extra Pounds	SC Non-combat Skill	Varies	10 turns	10 MP	None	Adds 5 times your current level, capped at 55.
Blood Porter	Item	Varies	50 turns	Item Loss, 2 Drunkenness	None	Adds 10 HP for every bottle of Bloodweiser drunk across all ascensions. Cap unknown. Obtained from Bottle of Bloodweiser.

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