Stark Pharm's Flex GCM formula...
Dietary supplement Power Pro - Gainer is a protein-carbohydrate complex to accelerate the gain of total body weight due to muscle without fat deposition.
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.
Maxler Mega Gainer is a reduced whey protein carbohydrate blend designed to provide energy support to the body before and during exercise.