The orc skin potion is a defensive potion. It is crafted by Lysis if she has access to two orc scalps. The orc skin potion gives the drinker the skin and base defense of an orc, increasing defense by 9 for about 1 minute. A drinking skill of 5 guarantees success with this potion.
Lysis buys orc skin potions for 14 gold and sells them for 50.