You can buy actual powdered caffeine online. GNC or some other supplement place might have it too.
other than GNC's website, are there other websites that you may know of that i might be able to check to compare prices?
you can buy it powdered and isolated - no-doz and equivalents contain other inert ingredients
http://www.aonevitamins.com/caffeine.htm
Be extremely careful about quantities when you are mixing up a batch.
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