Based on an analysis of the ingredients, BSN Cellmass is likely to enhance recovery after a workout. However, although the supplement is supposed to be taken after a workout, some of the ingredients are thought to enhance performance only when taken before a workout and are not thought to enhance recovery when taken after a workout.
Cellmass 2.0 is an oral supplement sold by BSN. It is intended to be taken immediately after a workout to improve recovery and promote strength, endurance and muscle performance. According to BSN, the product contains creatine, glutamine, taurine and hydrolyzed whey protein.
Creatine is an amino acid found in dietary protein and it is also synthesized by the body. It functions in skeletal muscle to provide a short, intense burst of energy. The body only stores a small amount of creatine, so after a workout, the muscles' supply has been temporarily depleted. However, according to WebMD, creatine supplements seem to improve performance when taken before an event, but it is unclear if they enhance recovery after a workout.
Taurine and glutamine are amino acids. Muscle & Body magazine says that taking supplemental glutamine after a workout stimulates muscle growth and inhibits muscle breakdown. Glutamine taken post-exercise can also boost the amount of calories burned while at rest. Taurine may improve endurance and muscle strength and prevent muscle fatigue by buffering lactic acid. However, unlike glutamine, Muscle & Body magazine suggests taking taurine only before workouts, not afterwards.
According to a study published in 2006 in Medicine and Science in Sports and Exercise, a combination of protein and carbohydrates consumed after a workout speeds recovery. If the protein is full of branched-chain amino acids (like hydrolyzed whey protein), it may work even better than other proteins to enhance recovery, according to the National Strength and Conditioning Association.