Components V, S, M (mercury and phosphorous, plus powdered diamond and opal worth a total of 1,000 gp)
Saving Throw Will negates; Spell Resistance yes
Symbol of slowing can be made permanent with a permanency spell by a caster of 11th level or higher for the cost of 10,000 gp.
Pathfinder Roleplaying Game Ultimate Magic. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.