L Leucine is one of the three branch chain amino acids (BCAAs) that support muscle recovery, but of these three, research demonstrates that it is by far the most important in muscle metabolism.This essential amino acid is different in the way that it acts directly as a stimulatory signal. Leucine is an activator and works by ‘triggering’ mTOR signalling pathways to switch on muscle protein synthesis whilst also playing a key role in reducing protein degradation.*Leucine is perfect for adding to your existing supplements in order to increase the leucine content, or even consuming on its own either before or after training to stimulate muscle protein synthesis.*Please note that the labelling on this product is provided in English as a minimum. French, Italian, German, Spanish, Danish, Swedish and Finnish may also be present on a product by product basis.