WOW Gold specialization procs account for as much as 20% extra product from the same mats.

Two pieces of vital information: First, specialization procs account for as much as 20% extra product from the same mats.

Second, while you can only have one specialization per character, you can change it for 150g by visiting the appropriate NPCs in Outland.

Assuming you do your business in batches, this is probably cheaper than wasting another character's profession slot on a second alchemy tradeskill.If you need help with this badly documented process,WOW Power Leveling EU, just look up the mastery you are unlearning, and revisit the NPC that trains it to unlearn it.