Like a good pair of designer shoes, Designer Whey lives up to its name. The blend is made up of natural GMO-free whey protein concentrate and GMO-free whey protein isolate. All of the whey from milk is made free of artificial growth hormones and antibiotics. Unlike most animal-based protein powders, this option also provides 3 grams of prebiotic veggie fiber which is beneficial to help suppress any hunger between meals. Although these ingredients are great for you, Designer Whey adds in taurine — an amino acid commonly found in the brain and used in many chemical-crammed energy drinks. According to research by Neil Harrison, PhD, a professor of pharmacology, the additive may operate more like a sedative than a stimulant.