Magical Substitution

You can substitute an ingredient with a magic spell effect when creating a potion. If the magic spell effect matches an effect of at least one other ingredient, it will be part of the potion. The amount of spells you can substitute depends on the level of Create Arcane Potion skill you are using. 

• Create Basic Arcane Potion: 1 magic spell with 1 ingredient
• Create Novice Arcane Potion: 2 magic spells with 1 ingredient
• Create Better Arcane Potion: 3 magic spells with 1 ingredient
• Create Advanced Arcane Potion: 4 magic spells with 1 ingredient

The rule is you have to include 1 ingredient and all other potion crafting rules do still apply. You also must have the spell you wish to apply to the potion. You will not lose the spell you are using as an ingredient substitute.