Gluten Free. The Highest Protein in its Class. Dymatize ISO-100 derives its name from its protein source, 100% Whey Protein Isolate, one of the most advanced and effective forms of protein available for support of lean muscle growth. After one serving of Dymatize ISO-100 you can instantly see, taste and even feel the difference! Our 100% Whey Protein Isolate has been processed to the zenith of perfection, removing both the lactose and fat, and giving ISO-100 its incredible instant mixability. Through no less than five quality controlled steps, this meticulous processing leaves you with nothing but one of the most easily digested, assimilated and most bioavailable sources of protein on the market. Check the stats: each 28 gram serving has an astonishing 24 grams protein-that's 86% protein by weight! And with zero sugar, lactose, fat and only 1.5 carbohydrates, nothing out there matches our formula, or even comes close. So you can feel confident that you will be feeding your muscles to their fullest potential. Typical Amino Acid Profile Per Serving: Isoleucine 1,975 mg, Leucine 2,825 mg, Lysine 2,000 mg, Methionine 425 mg, Phenylalanine 650 mg, Threonine 1,700 mg, Tryptophan 450 mg, Valine 1,850 mg, Alanine 1,100 mg, Arginine 575 mg, Aspartic Acid 2,350 mg, Cystine 450 mg, Glutamine & Precursors 4,450 mg, Glycine 450 mg, Histidine 440 mg, Proline 1,550 mg, Serine 1,225 mg, Tyrosine 550 mg.