Forksolin extract – Forksolin extract comes from a mint plant. This extract is available in southern part of Asia. Rapid Tone Scam or Not The reason why it is essential in burning fat is because it has the ability to boost the metabolism. It will also ultimately helps in gaining muscles. A very little amount of forksolin extract can give you some great benefits. Taking 250 milligram of this extract twice a day can give you positive results in just a few months.