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Skyrim-Database-Alchemy Effects-Fortify Alteration
All Alchemy Effects

Fortify Alteration
Skyrim Potion Effect

Alteration spells last 22% longer for 60 seconds.

Fortify Alteration is a beneficial alchemy effect in Skyrim, brewed into potions. It is carried by 9 ingredients, the strongest being Blind Watcher's Eye. Its potion strength scales with the Alchemy skill and perks.

It is the effect behind 4 ready-made potions, foods and poisons.

Potion Strength

Brewed from its strongest ingredient row, without Fortify Alchemy gear. Every mixture containing that ingredient reaches these numbers.
AlchemistPotionValue
Alchemy 15, no perksAlteration spells last 22% longer for 60 seconds.43
Alchemy 100, no perksAlteration spells last 30% longer for 60 seconds.60
Alchemy 100 with Alchemist 5, Physician, Benefactor, and PoisonerAlteration spells last 75% longer for 60 seconds.165

Potions and Food

Ingredients

Strongest first. When two ingredients in a mixture share this effect, the stronger one's numbers are used.
IngredientMagnitudeDuration
Blind Watcher's Eye
cc
560s
Strongest
×1.25 magnitude
Screaming Maw
cc
560s
×1.25 magnitude
Sload Soap
cc
560s
×1.25 magnitude
Burnt Spriggan Wood
db
460s
Grass Pod460s
Lyretail Anthias
cc
460s
River Betty460s
Spriggan Sap460s
Wild Grass Pod
cc
460s

Alchemy Calculator

Open the Alchemy Calculator with Fortify Alteration on the wishlist: it lists every ingredient pair that brews it, and computes the potion for your skill, perks, and gear.

Open the Alchemy Calculator