API Caffeinex Review

Editor's Review: 3.5 / 5.0

What You Should Know

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API Caffeinex is an energy and metabolism boosting supplement that claims to give you all the energy you need to keep going all day. We expected there to be more than one ingredient in the formula because of the unique name, but all we found was good old caffeine. Caffeine is a proven metabolism booster, but is this product worth the money?

We found no testimonials, free trials, money-back guarantees or before and after pictures associated with API Caffeinex. This is likely because the supplement is only a caffeine pill.

List of Ingredients


  • Caffeine – 100 mg.

Product Features

What does caffeine do for your metabolism? Well, it increases your heart rate directly, which causes you to burn more calories. There are also some central nervous system changes that take place that may impact metabolism. There are some claims that caffeine, like the 100 mg in API Caffeinex, suppresses appetite and those claims are both right and wrong. At first, when the caffeine boost is the strongest, you may feel a little nauseous and who wants to eat with an upset stomach? After that immediately boost wears off and your energy evens out – you are left with increased metabolism and increased hunger. That is where the other ingredients commonly found in weight loss supplements come into play.

Appetite suppressants help regulate blood glucose levels. After you’ve fought off that nausea your blood glucose could be lower than normal because you haven’t eaten. You eat a healthy meal and your glucose levels spike. This is where the appetite suppressant comes in. It may help keep glucose from falling too low after that spike and keep you out of the cookie jar.

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  • Caffeine will boost your metabolism.
  • API Caffeinex contains only 100 mg of caffeine.


  • Should not be taken with caffeinated beverages.
  • May be too strong for some dieters.
  • Not designed for weight loss.
  • Will not suppress appetite.


We like caffeine as a metabolism booster – especially in the 100 mg dose, but we are not thrilled with using products like API Caffeinex as standalone weight loss supplement due to the risk of increased hunger and overeating. Proven weight loss ingredients like green tea and chromium are commonly packaged with caffeine. Green tea contains EGCG, which increases metabolism even more without increasing stimulation and chromium helps control blood glucose. These are the top three proven weight loss supplement ingredients to look for in a proven product that works.

GD Star Rating

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