Jarrow Formulas L-Carnosine 500mg, Supports Brain, Memory, Cardiovascular Health, 90 Caps

L-Carnosine is found throughout the body, but it is particularly abundant in those cells that are long-lived, such as nerve cells (neurons) and muscle cells (myocytes). Chemically, it is a dipeptide (a molecule consisting of two amino acids) constructed from beta-alanine and L-histidine, hence its chemical name - beta-alanyl-L-histidine. L-carnosine, as is true of the antioxidant enzyme superoxide dismutase (SOD), is one of a handful of compounds that are present in tissues at levels that correlate strongly with the life spans of animal species. Muscle levels of L-carnosine decline approximately 63% between the ages of 10 and 70. However, brain levels of L-carnosine remain high in comparison with the levels found in most other tissues. Scientists have speculated that this may be one reason that brain function remains stable into old age despite the brains dependence upon glucose for energy metabolism and the unusually high ratio of fructose to glucose in the brain.

The ultimate test of cellular rejuvenation is the way in which an animal ages. A Russian study tested the effect of carnosine on life span and indicators of senescence in age-accelerated mice by giving half the mice carnosine in their drinking water starting at two months of age. At the conclusion of the study, th