Quality matters: choose supplements from reputable manufacturers that follow Good Manufacturing Practice standards
Foods rich in amino acids include lean meats, poultry, fish, eggs, dairy products, legumes, nuts, and seeds
GHK, which declines with age, has health promoting effects on many tissues such as chondrocytes, liver cells and human fibroblasts, improves wound healing and tissue regeneration (skin, hair follicles, stomach and intestinal linings, boney tissue), increases collagen, decorin, angiogenesis, and nerve outgrowth, possesses anti-oxidant, anti-inflammatory, anti-pain and anti-anxiety effects, increases cellular stemness and the secretion of trophic factors by mesenchymal stem cells
Br J Pharmacol 119(8):15331540 Mehta R, Pascual M, Soroko S, Savage B, Himmelfarb J, Ikizler T, Paganini E, Chertow G (2004) Spectrum of acute renal failure in the intensive care unit: the PICARD experience
Propionic acid metabolites may precipitate hyperammonemia