Whey Mass Gain is a complex, low-fat and high-protein gainer, which is complemented by a balanced ratio of carbohydrates and selected vitamins. It contains whey concentrate, which also gives it a favourable amino acid profile. All of this adds up to an effective supplement to increase calorie intake, which, thanks to protein, contributes to muscle growth and maintenance. Among the vitamins, vitamin B6 stands out, which contributes to the normal metabolism of protein and glycogen.