Don't /w mages. A lot of people are alchemists. First look in the Auction House. If there are none available, ask for them in the trade channel during peak hours. This is a low level potion, a lot of levelling alchemists will be more than happy to sell you some. The reason that it's not available at the AH is probably coz the herbs the potion requires sell for more and is a faster sell than the potion itself. And with alchemy, anyone who is not powerlevelling will have no wastage, unlike other crafting professions. (Potions are consumables). Alchemists don't usually sell potions they make for levelling in the AH, afaik. The ones I know tend to get to 300 naturally simply by making their own buff potions and handing them out in instances.
Edited, Apr 3rd 2007 8:09am by LittleHamster