Herbalife Formula 1 Nutritional Shake Mix contains its key ingredients which is Soy in the form of Soy Protein Isolate.
Apart from Soy, it also contains Casein which is a form of milk protein. It is present in less amounts.
Its 25 grams provides 9 grams of protein. With milk it could turn out to be 15-17 grams.
Herbalife Formula 1 Nutritional Shake Mix also contains Fiber concentration of up to 3 grams.