OstroVit - Histidine is an amino acid...
Gainer is a dietary supplement containing mainly high-quality protein (protein) and carbohydrates, due to which it has a high anabolic effect.
Contains complex carbohydrates with different glycemic index, high quality protein and BCAA.
The food supplement ActivLab - Mass Up is high-carbohydrate, which means that its use is guaranteed to help ectomorphs gain weight due to muscle mass.
Dietary supplement FitMax - Pure American Gainer is a protein-carbohydrate mixture supplemented with vitamins.