"This potent salve recovers your power when used."
You used to be able to win this item from the Lottery: Highday Lotto of which you can join on mylotro.com.
When you login, just click on your Logged in as SignInName at the top, go to the Character List, then click View Full List, click on the name of the character you wish to play the Lottery with, then click Lotteries over on the right hand corner next to Skirmishes now click on any of the Lotteries you wish to enter.
For players already logged in, the shortcut for this is:
http://my.lotro.com/SignInName/profile/mycharacters/