It has been repeatedly scientifically demonstrated this is not true. Excess protein is either excreted or, more commonly, converted to fat. Whether this extra protein is consumed in foods or in supplements, the body treats it in the same way. Claims that one supplement has amino acids and is more readily absorbed than others is a reflection on how little the public knows about the body's use of proteins. For persons wanting to gain weight, these supplements are probably beneficial, but that gain will be primarily fat, not muscle, unless a rigorous exercise program is followed.
Exercise is what builds muscles.
Supplements and energy foods are never directly turned into muscle. Many other claims have been made for various amino acids, from curing diseases to preventing insomnia. The average American consumes over 100 grams of protein a day, more than three times the amount needed for optimum health and nutrition. For reversing heart disease you should limit your intake of protein to between ten and fifteen percent of calories.