One study showed L carnosine was the only antioxidant to significantly protect cellular chromosomes from oxidative damage. Antioxidants cannot completely protect proteins. Nature’s second line of defence is to repair or remove damaged proteins.
This is where L carnosine demonstrates its most profound anti-ageing effect.
L Carnosine extends the cellular life span
Our bodies are comprised of cells that replace themselves by dividing. There is a genetic limit as to how many times our cells will continue to replicate themselves via healthy division processes. Once enough cells reach their genetic reproductive limit, the organism (our body) is no longer able to sustain life functions and succumbs to disease or death. When scientists transferred late-passage fibroblasts (a type of skin cell) to a culture medium containing L carnosine, they exhibited a rejuvenated appearance and often an enhanced capacity to divide. The L carnosine medium increased life span, even for old cells. Cells transferred to the L carnosine medium attained a life span of
413 days, compared to 126 to 139 days for the control cells.
This study showed that L carnosine induced a remarkable 67% increase in cellular life span. These aged cells also grew in the characteristic patterns of young cells and resumed a uniform appearance in the presence of L carnosine. Some researchers propose that L carnosine may rejuvenate cells by reducing the formation of abnormal proteins, or by stimulating the removal of old proteins