Medically reviewed by Kristie Reed, PharmD The safety of caffeine pills often depends on how much you take. High amounts of caffeine in a caffeine pill can cause symptoms like dizziness, irritability, ...

Caffeine powder is just one of many supplements not regulated by the FDA that can impose some serious risks if mishandled. We bought 500 mg of pure caffeine and opened it up to see what it looked ...

We’re guessing he needed another use for his supercritical drying chamber, so after looking over a few patents, he decided to make pure caffeine in his garage. The extraction began with green ...

Consult a healthcare provider if you want to try caffeine pills. They can help determine if you can take them and how much to take. Food and Drug Administration. FDA warns consumers about pure and ...