Aura Moderate abjuration; CL 9th
Slot none; Price 500 gp; Weight -

Derived from the patient distillation of rare magical reagents, a pinch of this fine white powder can be added to the casting of any spell as an additional material component to give the spellcaster a +5 bonus on caster level checks made to overcome spell resistance. 

Craft Wondrous Item, Spell Penetration; Cost 250 gp.