Best economical combo for optimum muscle growth. Advance Nutratech brings to you nutritious muscle building protein supplements - for your overall health, happiness and well being! Advance Nutratech Lean Mass Gainer 1KG (2.2LBS) Banana Lean Mass Gainer is a 100% Whey Protein that serves as a mass gainer and is a specially designed protein supplement for both men and women. It is perfect for anyone who wants to add muscle mass, but at the same time avoid unnecessary body fat. Advance Nutratech Lean Mass Gainer is an excellent quality whey protein blend with whey concentrate and whey isolate. It contributes to the growth and maintenance of muscle mass, and also to the maintenance of normal bones. With fully disclosed ingredients, Nutratech lean mass gainer guarantees to provide you with the best and the purest stuff.