What function does l-cysteine have in the body?
L-cysteine serves as the body’s primary source of sulphur. The amino acid forms sulphur bridges that give our connective tissue the strength it needs. It also stimulates the production of collagen, contributing to firm, youthful-looking skin. L-cysteine is also a component of keratin – the substance that makes hair and nails strong and stable. As an antioxidant, L-cysteine also counteracts the damage to cells caused by free radicals. This prevents oxidative stress and slows down the natural ageing of the skin. In addition, the versatile amino acid supports the liver in detoxification and protects the brain. And last but not least, it contributes to a strong immune system.
WHAT HAPPENS WHEN THERE IS A DEFICIENCY OF L-CYSTEINE?
Those who do not always have the opportunity to eat a healthy and balanced diet can easily supply their body with too little L-cysteine. A deficiency manifests itself, among other things, in brittle hair, hair loss, brittle nails, dry and cracked skin and frequent infections. If you are unsure, you can have your L-cysteine level measured by your doctor and your liver values determined.
HOW DO I COVER MY DAILY L-CYSTEINE REQUIREMENT?
Do you have an L-cysteine deficiency? You can do something about it. The first step is to integrate foods that contain a lot of L-cysteine into your diet. These include, above all, protein-rich products such as beef or pork, fish, eggs, pulses, cereals, nuts or porcini mushrooms. For beautiful skin and hair as well as strong nails, you can also give your body other antioxidants – for example selenium or the coenzyme Q10.
