L-cysteine protects against oxidative stress and damage.
Cysteine is a sulphur-containing amino acid.
It replenishes intracellular levels of the natural antioxidant glutathione, which are depleted by age and illness, helping to restore cells’ ability to fight damage from reactive oxygen species.
Cysteine has been used in medicine for more than 30 years, primarily as a mucolytic (mucous-thinner) inhaled to manage conditions such as cystic fibrosis, in which mucous is abnormally thick and tenacious. Almost 4 decades of use in a variety of clinical conditions have established the safety of cysteine even at high doses.
Cysteine’s ability to replenish the intracellular glutathione supply and mitigate oxidative damage is an equally powerful mechanism that protects against DNA damage and cancer development, even in smokers.
Cysteine has also proven effective against seasonal influenza and flu-like illnesses. Influenza is a complex disease with multiple targets, most notably inflicting damage to lung tissue through extreme oxidative stress. The influenza virus causes such intracellular turmoil that the term “cell boiling” has been used to describe the devastation. Prior treatment of cells with cysteine significantly offsets these effects, reducing the oxidative and inflammatory burden within lung tissue.
Cysteine produces numerous beneficial effects in many human tissues both by supporting natural antioxidant systems and by favourably affecting the expression of genes involved in the inflammatory response. Gene expression modifications induced by cysteine may also help reduce the acute oxidant-provoked inflammatory response following exercise, making vigorous activity safer and even more beneficial.
It has also been proven that cysteine blocks glycation and the formation of AGEs (advanced glycation end-products). Studies have shown that cysteine prevents the glycation of collagen proteins, working as a powerful anti-ageing element for the skin, by maintaining healthy collagen, which ensures firmness and elasticity.
As well as being a powerful antioxidant that protects against radiation, pollution, ultraviolet light and other causes of increased free radical production, cysteine is a key ingredient of hair and is essential for the growth, maintenance and repair of skin.Buy Lumity