Advanced formula. Pharmaceutical grade. Scientifically formulated. 100% natural peptide bond sustained release. Stronger formula. Genesis Amino Acid 1900 mg formula is an excellent amino acid source. The profile includes all of the essential, non-essential and Branch Chain amino acids in an easily assimilated protein coated tablet. Amino Acid 1900 mg provides quick and easy building materials for the body without fattening effects. The L-Tryptophane in this product is naturally occurring in Lactalbumin. There is no manufactured Tryptophane in this product. Because Lactalbumin is a 100% natural product the actual amino acid analysis may vary.