INGREDIENTS:
Why The Caffeine?
Caffeine is a great addition to any fat burning supplement because it has a wide variety of effects that contribute to weight loss, thus complementing the other compounds (green tea extract, etc) already present in the pill.
Caffeine is well known to stimulate the process of lipolysis, which is the breakdown of various fats and lipids in the body to release stored fatty acids. This results in a higher quality of energy whilst exercising and various medical trials have been conducted on both rats and humans to verify this information (Src: J Nutri Sci Vitaminol, based in Tokyo)
Caffeine also reduces your appetite, in conjunction with other appetite suppressants, this makes fasting or simply eating smaller portions much easier for the average individual.
As such, the general consensus is that the best fat burners on the market will inevitably have some quantity of caffeine in them.
Why Niacin?
Niacin is an important water soluble B-vitamin. It has been used as far back as the 1950s in order to alleviate high cholesterol in certain individuals.