Caffeine is one of the most studied ingredients in the weight-management world, and also one of the most misunderstood. Here's the plain-language version.
Caffeine is a stimulant. It increases alertness and can modestly raise your metabolic rate for a short window after you take it — this is sometimes called a thermogenic effect. It can also reduce perceived effort during exercise, which is part of why so many pre-workout and fat-burning products include it.
What caffeine does not do is burn fat by itself. Its role is closer to raising your energy and effort ceiling, which can support the habits (movement, consistency) that actually drive results over time. SodaSlim's Caffeine Anhydrous dose is 138mg — roughly one cup of coffee — paired with a smaller amount from Green Tea Extract.
If you're sensitive to stimulants, or already drink coffee daily, that combined intake is worth being mindful of.