re·stor·a·tive 
(rĭ-stôrə-tĭv)
(rĭ-stôrə-tĭv)adj.
1. Of or relating to restoration.
2. Tending or having the power to restore: a restorative tonic.
n.
1. Something that restores.
2. A medicine or other agent that helps to restore health, strength, or consciousness.
re·stora·tive·ly adv.