Alchemy is a great skill to have but realistically it slows your leveling because you have to run around collecting herbs with Herbalism. I still recommend doing Alchemy but if you want to level in a instant way while doing it you are going to want to this guide definitely, please make sure you’ll have enough gold to buy as many herbs as you can on the Auction House.
Alchemy powerleveling plays important part in high end PvP and raid content. Almost everyone has the pots that they want for any important confrontation with either a raid boss or a world PvP target. You can either be a supplier with lvl 375 alchemy,or a beggar who dumps lots of gold velon the Auction House to get their daily fix, or a guild leach who is always getting discount pots from the guild alchemist. If you're here, you've probably already made a decision to choose the former. So, as to such independence, it is easier to level alchemy to 375. I strong recommend leveling Herbalism as well, which I provide a detailed Herbalism guide with maps for level 1-375
There is one popular way to level quickly to 375 in alchemy as follows. The materials are based on a best case, unrealistic scenario that you level on each craft. This won't happen, so make sure you are ready to buy extras of everything before you get started. May you have a good luck!