What is Pro-Leucine? Is that like BCAAs?
Pro-Leucine does indeed have a similar effect to BCAAs. After all, BCAAs are a mix of leucine, iso-leucine and valine.
While leucine is only one of the three BCAAs (branched chain amino acids), it is the most powerful of the three (leucine, isoleucine, valine). Leucine provides the most muscle power and is responsible for switching on protein synthesis to build, maintain and repair weak or damaged muscles. In addition, both leucine and isoleucine have the ability to help your body with muscle building and muscle recovery after exercise.
Leucine is most effective when taken in its pure form.