Netruk44/uesp-wiki-content huggingface dataset:
Skyrim:Fortify Conjuration

There are two distinct Fortify Conjuration effects: one from Alchemy-created potions and one granted by enchanting armor. Their effects are as follows.

Alchemy
In potions, Fortify Conjuration increases the duration of Conjuration magic.

The following alchemy ingredients can be used to create a potion of Fortify Conjuration:
Ancestor Moth Wing 
Berit's Ashes
Blue Butterfly Wing
Blue Mountain Flower
Bone Meal
Chaurus Hunter Antennae 
Congealed Putrescence  ( &times;Magnitude, &times;Value)
Frost Salts
Hagraven Feathers
Lavender
Lyretail Anthias 
Sload Soap  ( &times;Magnitude, &times;Value)

Enchanting
In enchantments, Fortify Conjuration decreases the cost of Conjuration spells, and the use cost of Conjuration based enchantments.  It does not increase the skill level for Conjuration which appears in the skills sub-menu.

The following items use this effect.  You can learn how to enchant custom items with Fortify Conjuration if you find one of the following items and disenchant it:
All varieties of Armor, Bracers, and Helmet of Conjuring
Includes the enchantments of Minor Fortify Conjuring, of Major Fortify Conjuring, of Extreme Fortify Conjuring of Eminent Fortify Conjuring, and of Peerless Fortify Conjuring.
All varieties of Robes, Circlets, and Imperial Helmets of Conjuration
Includes the enchantments of Minor Fortify Conjuration, of Major Fortify Conjuration, of Extreme Fortify Conjuration of Eminent Fortify Conjuration, and of Peerless Fortify Conjuration.
Artifacts and unique items that use the effect but cannot be disenchanted include:
Archmage's Robes
Necromancer Amulet
Saarthal Amulet
Vokun
Warlock's Mark
Skyrim:Fortify Destruction

There are two distinct Fortify Destruction effects: one from Alchemy-created potions and one granted by enchanting armor. Their effects are as follows.

Alchemy
In potions, Fortify Destruction increases the magnitude of Destruction magic.

The following alchemy ingredients can be used to create a potion of Fortify Destruction:
Ash Creep Cluster 
Beehive Husk
Comberry  ( &times;Magnitude, &times;Value)
Daedra Venin  ( &times;Magnitude, &times;Value)
Ectoplasm ( &times;Magnitude)
Glow Dust
Glowing Mushroom
Nightshade ( &times;Magnitude)
Steel-Blue Entoloma 
Wisp Wrappings

Enchanting
In enchantments, Fortify Destruction decreases the cost of Destruction spells and the use cost of Destruction-based enchantments.

The following items use this effect.  You can learn how to enchant custom items with Fortify Destruction if you find one of the following items and disenchant it:
All varieties of Armor, Bracers, Circlets, Helmets, Rings, Necklaces, and Robes of Destruction
Includes the enchantments of Minor Destruction, of Major Destruction, of Extreme Destruction, of Eminent Destruction, and of Peerless Destruction.
Hooded Thalmor Robes
Thalmor Robes

Artifacts and unique items that use the effect but cannot be disenchanted include:
Archmage's Robes
Armor of the Old Gods
Diadem of the Savant
Nahkriin
Nightweaver's Band
Saarthal Amulet
Shrouded Robes
Skyrim:Fortify Enchanting

Fortify Enchanting increases the strength of your Enchanting. It works by directly modifying the Enchanting skill level, contrary to what the description suggests. With alchemical support, it is possible to create stronger enchantments than those found on stock gear and weapons in the game, and stronger than those you would be able to create with an Enchanting skill of 100.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Enchanting:
Ancestor Moth Wing 
Blue Butterfly Wing
Chaurus Hunter Antennae 
Dreugh Wax  ( ×Magnitude, ×Value)
Hagraven Claw
Snowberries
Spawn Ash 
Spriggan Sap
Stoneflower Petals  ( ×Magnitude, &times;Value)

Items to Enchant
The Fortify Enchanting effect is not available for enchanting.

Notes
Wearing exactly four relics of Ahzidal will grant the ability Ahzidal's Genius  that increases Enchanting skill by 10 points. One of the rings from Ahzidal's set may be worn in addition to three armor pieces to make up the count of four.
Choosing the ability Seeker of Sorcery  from the Black Book The Sallow Regent will increase the strength of all enchantments by 10%.
As with Fortify Smithing and the smithing tables, Fortify Enchanting effects do not last long and time runs in realtime while using the enchanter – often only long enough to enchant 1 to 2 items, and not if you dawdle.  You can open the console to pause the game while you look over the available enchantments for the item you have selected. Another pausing technique is to enter the item-rename phase of the process (F hotkey by default in the Windows version) after selecting item, soul gem, and any enchantment.
Skyrim:Fortify Health

Fortify Health boosts the target's health by   points.  When the effect expires, the target loses   points of health unless that would reduce the target's health to 0 or less (the target is left with at least 1 health point when the effect expires).

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Health:
Ambrosia  ( &times;Magnitude, &times;Value)
Bear Claws
Blue Mountain Flower
Boar Tusk  ( &times;22px|Duration, &times;Value)
Fungus Stalk  ( &times;Magnitude, &times;22px|Duration, &times;Value)
Giant's Toe ( &times;22px|Duration, &times;Value)
Glowing Mushroom
Hanging Moss
Heart of Order  ( &times;Magnitude, &times;22px|Duration, &times;Value)
Hydnum Azure Giant Spore  ( &times;Magnitude, &times;22px|Duration, &times;Value)
Void Essence  ( &times;Magnitude, &times;22px|Duration, &times;Value)
Wheat
Yellow Mountain Flower 

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Health if you find one of the following items and disenchant it:
All varieties of Armor of Health
Includes the enchantments of Minor Health, of Major Health, of Extreme Health, of Eminent Health, and of Peerless Health.
Enchanted Ring

Artifacts and unique items that use the effect but cannot be disenchanted include:
Amulet of Arkay
The Gauldur Amulet
Gauldur Amulet Fragment
Shield of Ysgramor

Blessings
The Blessing of Arkay provides 25 points of additional Health for 8 hours.
The Blessing of the Stag Prince provides 5 points of Health while the Glass Bow of the Stag Prince is equipped, as well as an additional 5 points for every 20 animals killed with the bow (up to a maximum of 25 points). 
The Elytra's Uplifting Aura provides 10 points of Health for 5 minutes. 

Notes
Rally spells include a secondary Fortify Health effect.
Restore Health may be more ideal for immediate health gain while in combat.
Skyrim:Fortify Heavy Armor

Fortify Heavy Armor increases your Heavy Armor skill.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Heavy Armor:
Bliss Bug Thorax 
Bog Beacon  ( &times;Magnitude, &times;Value)
Goldfish 
Gnarl Bark  ( &times;Magnitude, &times;Value)
Ice Wraith Teeth
Sabre Cat Tooth
Slaughterfish Scales
Thistle Branch
White Cap

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Heavy Armor if you find one of the following items and disenchant it:
Most varieties of Armor and Necklaces of the Knight
Includes the enchantments of the Minor Knight, of the Noble Knight, of the Major Knight, of the Extreme Knight, of the Eminent Knight, and of the Peerless Knight

Bugs
Skyrim:Fortify Illusion

Vampirism description: Illusion spells are 25% more powerful.

There are three distinct Fortify Illusion effects: one from Alchemy-created potions, one granted by enchanting armor, and one from vampirism.  Their effects are as follows.

Alchemy
In potions, Fortify Illusion increases the magnitude of Illusion spells. This allows targeted Illusion spells to affect higher-level creatures, and is applied before perks. For example, a Fury spell cast with a Fortify Illusion +50% potion and the Rage perk will affect creatures up to level  . Without the potion it would be  18, an increase of 3.

On the other hand, a Frenzy spell cast with the same potion but no perks will affect creatures up to level  . Without the potion it would be 14, an increase of 7. Thus this bonus is best used on high-level spells and can be effective even if the user does not have Illusion perks.

The following alchemy ingredients can be used to create a potion of Fortify Illusion:
Bliss Bug Thorax  ( &times;Magnitude, &times;Value)
Dragon's Tongue
Dwarven Oil
Glassfish  ( &times;Magnitude, &times;Value)
Mora Tapinella
Scaly Pholiota
Taproot
Watcher's Eye  ( &times;Magnitude, &times;Value)

Enchanting
In enchantments, Fortify Illusion decreases the cost of Illusion spells, and the use cost of Illusion based enchantments.

The following items use this effect.  You can learn how to enchant custom items with Fortify Illusion if you find one of the following items and disenchant it:
All varieties of Armor, Helmets, and Rings of Illusion
Includes the enchantments of Minor Illusion, of Major Illusion, of Extreme Illusion, of Eminent Illusion, and of Peerless Illusion.
All varieties of Robes of Illusion
Artifacts and unique items that use the effect but cannot be disenchanted include:
Archmage's Robes
Diadem of the Savant
Nightingale Hood
Saarthal Amulet
Vokun

Vampirism
Vampirism grants the Champion of the Night effect. This allows targeted Illusion spells to affect higher-level creatures but is applied after perks, making it very powerful for high-level Illusionists. For example, a Fury spell cast with Champion of the Night and the Rage perk will affect creatures up to level  , rounded down to 22. Without vampirism it would be 18, an increase of 4.

On the other hand, a Frenzy spell cast with Champion of the Night but no perks will affect creatures up to level  . Without vampirism it would be 14, an increase of 4. Thus, this bonus works best for characters who have invested in Illusion perks.

Keep in mind that dual casting an Illusion spell will double its strength—including any bonuses from Alchemy and/or vampirism—in exchange for almost tripling the cost.
Skyrim:Fortify Light Armor

Fortify Light Armor increases your Light Armor skill.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Light Armor:
Ash Hopper Jelly 
Aster Bloom Core  ( &times;Magnitude, &times;Value)
Beehive Husk
Felsaad Tern Feathers 
Hawk Feathers
Honeycomb
Luna Moth Wing
Skeever Tail
Withering Moon  ( &times;Magnitude, &times;Value)

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Light Armor if you find one of the following items and disenchant it:
All varieties of Armor and Necklaces of the Squire
Includes the enchantments of the Minor Squire, of the Major Squire, of the Noble Squire, of the Extreme Squire, of the Eminent Squire, and of the Peerless Squire.
Bugs
Skyrim:Fortify Lockpicking

Fortify Lockpicking makes Lockpicking easier.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Lockpicking:
Ashen Grass Pod 
Falmer Ear
Namira's Rot
Pine Thrush Egg
Spadefish 
Spider Egg
Worm's Head Cap  ( &times;Magnitude, &times;Value) (1st effect)

Enchanting

The following items use this effect.  You can learn how to enchant custom items with Fortify Lockpicking if you find one of the following items and disenchant it:
All varieties of Bracers/Gauntlets and Necklaces of Lockpicking
Includes the enchantments of Minor Lockpicking, of Major Lockpicking, of Extreme Lockpicking, of Eminent Lockpicking, and of Peerless Lockpicking.
Artifacts and unique items that use the effect but cannot be disenchanted include:
Guild Master's Gloves
Krosis
Nightingale Gloves
Thieves Guild Gloves
Tumblerbane Gloves

Bugs
Skyrim:Fortify Magicka

Fortify Magicka increases your total magicka.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Magicka:
Blind Watcher's Eye  ( &times;Magnitude, &times;Value)
Blister Pod Cap  ( &times;Magnitude, &times;Value)
Briar Heart
Ectoplasm
Emperor Parasol Moss 
Histcarp
Hunger Tongue  ( &times;Magnitude, &times;Value)
Jazbay Grapes
Lichor  ( &times;Magnitude, &times;Value)
Red Kelp Gas Bladder  ( &times;Magnitude, &times;Value)
Red Mountain Flower
Salmon Roe  ( ×Magnitude,  ×22px|Duration,  ×Value)
Saltrice  ( &times;Magnitude, &times;Value)
Stoneflower Petals  ( &times;Magnitude, &times;Value)
Tundra Cotton
Void Salts
Watcher's Eye  ( &times;Magnitude, &times;Value)

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Magicka if you find one of the following items and disenchant it:
All varieties of Circlets, Helmets, and Rings of Magicka
Includes the enchantments of Minor Magicka, of Major Magicka, of Extreme Magicka, of Eminent Magicka, and of Peerless Magicka.
Adept Hood
Apprentice Hood
Black Mage Hood
Executioner's Hood
Mage's Circlet
Novice Hood
Savos Aren's Amulet
Artifacts and unique items that use the effect but cannot be disenchanted include:
Amulet of Julianos
Archmage's Robes
The Gauldur Amulet
Gauldur Amulet Fragment
Helmet of the Old Gods
Miraak 
Nahkriin
Necromancer Amulet

Blessings and Powers
The Blessing of Julianos provides 25 pts additional magicka
The Atronach Stone provides 50 pts additional magicka (among other effects)
The Highborn ability gives Altmer 50 pts additional magicka

Bugs
Skyrim:Fortify One-handed

Fortify One-handed increases the damage of one-handed weapons.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify One-handed:
Bear Claws
Canis Root
Hanging Moss
Hawk Feathers
Heart of Order  ( &times;Magnitude, &times;Value)
Pearlfish 
Rock Warbler Egg
Small Pearl
Stoneflower Petals  ( &times;Magnitude, &times;Value)

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify One-handed if you find one of the following items and disenchant it:
All varieties of Bracers/Gauntlets, Necklaces, and Rings of Wielding
Includes the enchantments of Minor Wielding, of Major Wielding, of Extreme Wielding, of Eminent Wielding, and of Peerless Wielding.
Artifacts and unique items that use the effect but cannot be disenchanted include:
Cicero's Clothes
Deathbrand Gauntlets 
Jester's Clothes
Nightingale Gloves

Linwe's Gloves can technically be disenchanted, allowing you to learn a special version of Fortify One-handed named Shadowstrike.  However, Shadowstrike cannot be used to enchant any items because no enchanting slots are enabled for the effect.

Blessings
The Blessing of Boethiah  provides a 10% Fortify One-handed effect for 8 hours.
The Elytra's Fierce Aura  provides +10 Fortify One-handed for 5 minutes.

Notes
The name of the enchanting version of this effect is actually "Fortify One-Handed" instead of "Fortify One-handed".
The Call to Arms spell includes a secondary Fortify One-handed effect, which directly increases the One-handed skill of allies.

Bugs
Skyrim:Fortify Persuasion

Fortify Persuasion, despite the name, increases your Speech skill level directly, not just your persuasion ability. Therefore, barter prices are affected by Fortify Persuasion, as well as covered by the separate Fortify Barter effect; see the effect for more details.  However, because speech does not improve above 100 (i.e. speech above 100 affects prices as if it were speech 100), Fortify Persuasion ceases to improve prices at that point.

Alchemy
The following alchemy ingredient has a Fortify Persuasion effect, but cannot be used to make a potion due to lack of a second ingredient with the effect:
Glassfish 

Enchanting
The following items use this effect but neither can be disenchanted:
Amulet of Dibella
Masque of Clavicus Vile (also has the fortify barter enchantment, making it a very useful headpiece for purchases)
The Amulet of Articulation also directly increases speech skill, but with a different effect named "Articulation".

Blessings
The Blessing of Dibella and the Gift of Charity both provide +10 Speech.  These two blessings can be active simultaneously.

Notes
Fortify Persuasion is one of the only randomly-generated potion effects that isn't also an alchemy effect; the other being Waterwalking . You can find or buy Fortify Persuasion potions, but you cannot make your own.
Skyrim:Fortify Pickpocket

Fortify Pickpocket increases the chance of successfully pickpocketing an item.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Pickpocket:
Blue Dartwing
Kresh Fiber  ( &times;Magnitude, &times;Value)
Nordic Barnacle
Orange Dartwing
Slaughterfish Egg
Spadefish 

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Pickpocket if you find one of the following items and disenchant it:
All varieties of Bracers/Gauntlets and Rings of Deft Hands
Includes the enchantments of Minor Deft Hands, of Major Deft Hands, of Extreme Deft Hands, of Eminent Deft Hands, and of Peerless Deft Hands.
Artifacts and unique items that use the effect but cannot be disenchanted include:
Guild Master's Boots
Thieves Guild Boots

Bugs
Skyrim:Fortify Restoration

There are two distinct Fortify Restoration effects: one from Alchemy-created potions and one granted by enchanting armor. Their effects are as follows.

Alchemy
In potions, Fortify Restoration increases the magnitude of Restoration magic.

The following alchemy ingredients can be used to create a potion of Fortify Restoration:
Abecean Longfin
Cyrodilic Spadetail
Hackle-Lo Leaf  ( &times;Magnitude, &times;Value)
Pygmy Sunfish 
Salt Pile
Small Antlers
Small Pearl
Yellow Mountain Flower  ( &times;Magnitude, &times;Value)

Enchanting
In enchantments, Fortify Restoration decreases the cost of Restoration spells, and the use cost of Restoration based enchantments. 

The following items use this effect.  You can learn how to enchant custom items with Fortify Restoration if you find one of the following items and disenchant it:
All varieties of Armor, Circlets, Helmets, and Rings of Restoration
Includes the enchantments of Minor Restoration, of Major Restoration, of Extreme Restoration, of Eminent Restoration, and of Peerless Restoration.
The Bond of Matrimony
The Bond of Matrimony can be disenchanted, but the underlying effect is just a standard Fortify Restoration effect instead of the different effect that might be inferred from the name Blessing of Mara. Also, this effect cannot be applied to any item after it is learned.
Artifacts and unique items that use the effect but cannot be disenchanted include:
Amulet of Mara
Archmage's Robes
Diadem of the Savant
Nahkriin
The various Robes of Restoration use a different variant of the Fortify Restoration effect, and the Saarthal Amulet uses a third variant

Blessings
The Blessing of Mara provides 10% Fortify Restoration (restoration spells cost 10% less magicka to cast).

Notes
Notably, three ingredients for a potion of this effect (Cyrodilic Spadetail, Abecean Longfin, and Small Antlers) can be found in and along rivers; by following a large river downstream, players can collect dozens of potions' worth of these three ingredients quickly. An even easier method of collecting the Spadetails and Longfins is to take them from the fish barrels in the docks just outside of Riften, or by using the fish hatchery available at Windstad Manor . Salt Pile also offers this effect, and can be purchased at nearly any tavern and are found in fish barrels as well.

Bugs
Skyrim:Fortify Shouts

Fortify Shouts is an effect that reduces the cooldown time between shouts.  The magnitude of this effect is alternatively expressed either in percentage or in points. An effect with a magnitude of 0.2 point actually causes a 20% reduction in time between shouts.  A magnitude of 0.2 reduces the   actor value from its base value of 1.0 to 0.8.

Note that a display bug causes the effect text in-game to appear inaccurate in some cases.  Whenever an in-game display shows the 0.2 magnitude, it rounds the value, meaning that the text ends up saying that the effect is 0% instead of 20%.

Enchanting
The following items use this effect, but none of them can be disenchanted:
Amulet of Talos
Ogmund's Amulet of Talos
Raerek's Inscribed Amulet of Talos

Blessings
The Blessing of Talos reduces the time between shouts by 20%.

Bugs
Skyrim:Fortify Smithing

Fortify Smithing increases the effectiveness when using Smithing to improve weapons and armor.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Smithing:
Blisterwort
Dreugh Wax  ( &times;Magnitude, &times;Value)
Glowing Mushroom
Gold Kanet  ( &times;Magnitude, &times;Value)
Pearlfish 
Sabre Cat Tooth
Spriggan Sap

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Smithing if you find one of the following items and disenchant it:
All varieties of Bracers/Gauntlets, Necklaces, and rings of Smithing
Includes the enchantments of Minor Smithing, Major Smithing, Extreme Smithing, Eminent Smithing and Peerless Smithing.
Silver-Blood Family Ring
The Forgemaster's Fingers
Items that use the effect but cannot be disenchanted include:
Arcane Blacksmith's Apron 

Items to Enchant
The Fortify Smithing effect can be enchanted onto the following items:
Chest pieces
Necklaces
Gauntlets and gloves
Rings
The effect's enhancement applies to all item-tempering smithing, including of weapons, helmets, cuirasses, gauntlets, and non-clothing boots.  It has no effect on item-creation smithing.

Notes
The Seeker of Might power from the Dragonborn add-on fortifies your smithing along with all other combat skills by 10%.
The Notched Pickaxe from the Throat of the World also buffs the smithing skill.

Bugs
 
 
 

Related Effects
Smithing Expertise
Skyrim:Fortify Sneak

Fortify Sneak decreases the chance of being detected while sneaking.

Alchemy
The following alchemy ingredients can be used to create a potion of Fortify Sneak:
Abecean Longfin
Ashen Grass Pod 
Beehive Husk
Frost Mirriam
Hawk Feathers
Human Flesh
Kresh Fiber  ( &times;Magnitude, &times;Value)
Powdered Mammoth Tusk
Purple Mountain Flower
Roobrush  ( &times;Magnitude, &times;Value)

Enchanting
The following items use this effect.  You can learn how to enchant custom items with Fortify Sneak if you find one of the following items and disenchant it:
All varieties of Boots, Necklaces, and Rings of Sneaking
Includes the enchantments of Minor Sneaking, of Major Sneaking, of Extreme Sneaking, of Eminent Sneaking, and of Peerless Sneaking.
Artifacts and unique items that use the effect but cannot be disenchanted include:
Boots of the Old Gods
Cicero's Hat
Jester's Hat
Movarth's Boots
Nightweaver's Band
Shrouded Hood

Linwe's Boots can technically be disenchanted, allowing you to learn a special version of Fortify Sneak named Shadowstrength.  However, Shadowstrength cannot be used to enchant any items because no enchanting slots are enabled for the effect.

Blessings
The Blessing of Nocturnal provides 10% Fortify Sneak.

Vampirism
The Nightwalker's Footsteps provides 25% Fortify Sneak.

Notes
If you are enchanting for profit, Fortify Sneak provides the most lucrative enchantment that can be applied to apparel.

Bugs
 

Related Effects
Muffle
Skyrim:Fortify Spells

Enchanting
Only one item uses this effect, but it cannot be disenchanted:
Saarthal Amulet

Notes
The Diadem of the Savant and Archmage's Robes provide an equivalent effect (and are slightly stronger, at a 5% and 15%, respectively, cost reduction for all spells) but do so with a different enchantment that contains all five schools separately. They cannot be disenchanted either.

This effect is actually just a different version of Fortify Alteration rather than fortify all spells.