Cysteine is a sulfur containing amino that detoxifies many harmful chemicals including those from cigarette smoke, pollution and alcohol as well as copper and heavy toxic metals. Cysteine can prevent hangovers and promotes healing and the immune system. Since Cysteine is a central amino in the protein keratin, it has been found to increase hair growth by as much as 100%, to increase the diameter of hair shafts and to harden the nails. Cysteine is a powerful antioxidant that has been shown to help protect the cells against X-Ray and nuclear radiation. One note of caution; Cysteine can affect insulin effectiveness so diabetics need to exercise caution when using this amino.
There is no question that Cysteine helps improve the look of the hair and the hardness of nails. Most people take between 500 mgs. and 1,000 grams of Cysteine daily. This is an amino that works very well in supplement form.