RPN Havoc is a type of prohormone. It is a synthetically produced supplement that ultimately converts to an anabolic hormone, helping to build muscle mass, according to RPNHavoc.net.
The RPN Havoc site claims that RPN Havoc has become the most-used prohormone by consumers in the United States. This particular supplement was not always available for purchase in the American market, according to the product website, which reveals that RPN Havoc was banned because of harmful side effects similar to those from steroids. These side effects can be greatly reduced when the product is taken responsibly, according to the RPN Havoc website.