No potions of See Invisibility?

CREATING POTIONS
The creator of a potion needs a level working surface and at least a few containers in which to mix liquids, as well as a source of heat to boil the brew. In addition, he needs ingredients. The costs for materials and ingredients are subsumed in the cost for brewing the potion—25 gp x the level of the spell x the level of the caster.
All ingredients and materials used to brew a potion must be fresh and unused. The character must pay the full cost for brewing each potion. (Economies of scale do not apply.)
The imbiber of the potion is both the caster and the target. Spells with a range of personal cannot be made into potions.

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