Syntha 6 edge by bsn low-calorie whey protein blend 6 different protein sources amazing taste & texture bsn syntha 6 edge is a high-quality lean protein powder. It uses a blend of fast, medium and slows digesting protein sources for a sustained release of amino acids. Bsn syntha 6 edge uses whey protein as the primary source which makes high in protein and also much lower in carbohydrates and fat. Whey protein is ideal for building muscle as it is easily digested and used to repair muscle tissue. Whey is also naturally high in leucine which is the trigger for muscle protein synthesis and repair. This is the leaner version of the original syntha-6 lean gainer. In addition to the fast-acting protein sources, bsn syntha-6 edge also had multiple sources of casein. These are very slow-digesting protein sources and will supply the body with essential amino acids for 6-8 hours. This is a very versatile supplement which can be used any time throughout the day or night. Sufficient protein intake is essential for building muscle and recovering from hard training. Quality protein powder makes this process much easier as it is very high in protein, convenient and very affordable. The best part about this? the flavours! bsn is known for their flavour systems and nothing beats the taste of this.