Upgraded Collagen is the gold standard for protein powders. Amino acids are the building blocks your body uses to make muscles and sinew. Upgraded Collagen has amino acids glycine, lysine and proline which are the building blocks your body uses to make muscles, bones, and joints. Upgraded Collagen taken at bedtime provides arginine to stimulate growth hormone release, and provides nutrients necessary to perform tissue repair while sleeping. It mixes easily with other foods and shakes thanks to its neutral taste.