I think all the pills on weight loss are placebo, it`s great business cos people love to lie themselves.
Cutting calories is the only way of doing that, I know it is not this what most of the people want to hear but it`s true and I am the perfect example of that, I have tried hundreds of diets, pills, exercises , nothing, absolutely nothing could helped me during my 10 years "jurney" with obesity. Only cutting the calories does the job, results are very fast. But you must to do it right way to not hurt yourself.