Amino Acid Supplement. Sustained Release Peptide Bonded Amino Acids . With Added B6 for Absorption. Who We Are: Universal Nutrition has been providing cutting edge and staple nutritional supplements to bodybuilders and hard training athletes the world over since 1977. As time passes, certain ideals never go out of style. Honesty. Integrity. Respect. These are the values we uphold and are the bedrock upon which we built our business. What It Is: Amino 1900 contains the highest potency of superior peptide bonded amino acids and is scientifically balanced to help you achieve optimum muscle growth, recover faster and enhance performance. How We Back It Up: What is on the label is in the bottle and what is in the bottle will help you reach your goals. We guarantee it. Backed by our 100% ironclad money back guarantee, we proudly stand behind every item we produce. If for whatever reason you are not satisfied with any product bearing our name, simply return it to your place of purchase with a receipt for a full refund. Our word is our bond.