First, here a recipe of Aphrodisiac.
And about Alpha werewolf since he can be teased, so you can use lust potion on him and also tease him until he got horny and defeat. But if you want to win him by force, sleeping dust is one of the best strategic for battling.
Wearing good armour will help with a physical altercation (and/or helping you survive long enough to win via tease). Try to focus a little on health as you level up. Finally remember - you're an herbalist! Be sure before you set out that you have a healthy supply of strong healing potions, and then ideally some others. You'll want to get the healer down first.
